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| Number | Title | Issue Date |
| 7441905 | Optical scanner An optical scanner suitable for scanning a vertical object. The optical scanner has a scanning body, a focusing device and a scanning module. The scanning body has a transparent window, the focusing device has an arm, a reflective mirror and a lens. One end of the a... | 10/28/2008 |
| 7270420 | Optical scanner An optical scanner suitable for scanning a vertical object. The optical scanner has a scanning body, a focusing device and a scanning module. The scanning body has a transparent window, the focusing device has an arm, a reflective mirror and a lens. One end of the a... | 09/18/2007 |
| 7216748 | Method and apparatus for releasing torque on a drivetrain The present invention is a drivetrain that prevents the torque from a decelerating engine from being transmitted to the wheels of the vehicle. The drivetrain of a vehicle is provided such that the negative torque from the decelerating engine of the vehicle is select... | 05/15/2007 |
| 7054464 | System and method of distribution of digitized materials and control of scoring for open-ended assessments Methods are disclosed for distributing digitized electronic representations of representative responses to non-objective assessment tasks and established scores for the responses to readers in order to train the readers to determine scores for responses in accordanc... | 05/30/2006 |
| 6961482 | System for archiving electronic images of test question responses A system and method for electronically archiving electronic images of responses received from a response provider in such a manner that reduces the amount of electronic resources required for said archival. ... | 11/01/2005 |
| 5541680 | Slide projector assembly A slide projector assembly provided with novel slides which may be drawn upon and/or associated with a sound track specific to the slide being projected. The slides may be blank or have line drawings in which cases the slides may be drawn upon. In additio... | 07/30/1996 |
| 5067287 | Display wall assembly In accordance with the invention a wall assembly for displaying visual messages, has a front portion, a display area in the front portion, the display area providing an opening through the wall assembly, a projection screen for covering the opening, and a... | 11/26/1991 |
| 4959734 | Prestored response processing system for branching control of interactive video disc systems An interactive control system including a wide bandwidth, random access recorder including a recording which contains sequentially recorded discete sets of co-located video, audio and digital information including, for example, a question or other interro... | 09/25/1990 |
| 4710130 | Dichotic-diotic paired-association for learning of verbal materials A product and method for the presentation of prerecorded audio-visual sets of related words or phrases for their learned association is disclosed wherein the learner is presented simultaneous and sequential audio material while viewing spatially compatibl... | 12/01/1987 |
| 4470675 | Random access control apparatus and method for slide projector Random access slide projector apparatus is provided for the random access presentation of slide programs. The random access apparatus is responsive to an encoded program tape or to input signals from a local or remote keyboard. The encoded program tape in... | 09/11/1984 |
| 4468204 | Process of human-machine interactive educational instruction using voice response verification A method of human-machine interactive instruction with the aid of a digital computer is disclosed. The first step is providing the computer with a data base of a series of questions and answers which can be reproduced and thereafter individualized by stud... | 08/28/1984 |
| 4165570 | Pedestrian street and road crossing trainer and method A method of and audio/visual apparatus for training and testing pedestrians, especially children, in the safe transit of roadways, intersections and crosswalks are disclosed. The apparatus comprises an automated system including a pair of image projectors... | 08/28/1979 |
| 4092785 | Teaching and display apparatus A teaching and display apparatus having three panels connected at angles to one another with the main front panel being a display and multipurpose panel for allowing the operator within said apparatus to present numerous instructional displays as well as ... | 06/06/1978 |
| 4075668 | Digital logic control for audio visual programs and method therefor The present disclosure is directed to a logic control system for maintaining sync between an audio tape program and a slide or film projector by adding a signal track to the tape on which is recorded a tape stop signal and projector frame change signal wh... | 02/21/1978 |
| 4046437 | Combination cabinet for audio-visual teaching A combination cabinet for audio-visual teaching comprises a projection screen which is mounted for pivoting into an operational position in which it receives by rear projection an image from a projector after reflection of the image light rays by a mirror... | 09/06/1977 |
| 4026040 | Educational device for learning about inductors An educational kit for aiding a student in the understanding of the induction of electrical current and the basic functions of inductors in electrical circuits is disclosed. The educational kit includes an instructional device, preferably in the form of a... | 05/31/1977 |
| 4026039 | Educational device for learning basic measurements An educational kit for teaching a student about basic electrical measuring devices is disclosed. The kit includes an instructional means, and a simulator board which permits the student to learn how to use electrical meters by taking measurements of vario... | 05/31/1977 |
| 4009524 | Educational device for learning fundamentals of engine operation An educational kit for teaching the internal combustion engine is disclosed. The kit comprises an instructional system, a simulator board upon which is graphically depicted two schematic sectional views of the cylinder portion of a four stroke cycle inter... | 03/01/1977 |
| 4006538 | Educational device for learning switching An educational kit for teaching a student the basics of switching and of relay operation is disclosed. The kit includes instructional apparatus, and a simulator board which permits the student to match the names of switches with their correct symbols and ... | 02/08/1977 |
| 4006537 | Educational device for learning rotary engine fundamentals An educational kit for teaching the operation and mechanism of an internal combustion rotary engine is disclosed. The kit comprises an audiovisual instructional system, a simulator board upon which is graphically depicted indicia representing a schematic ... | 02/08/1977 |
| 4004353 | Educational device for learning automotive trouble-shooting An educational kit for teaching trouble-shooting procedures in an automotive electrical system is disclosed. The kit comprises an audio-visual instructional means, a simulator board upon which is graphically depicted a schematic diagram of a typical autom... | 01/25/1977 |
| 4003140 | Educational device for learning engine fuel, lubrication and cooling systems An educational kit for teaching fuel, engine lubrication, and engine cooling systems of an automobile engine is disclosed. The kit comprises audiovisual instructional means, a simulator board upon which is graphically depicted indicia representing a schem... | 01/18/1977 |
| 3999307 | Teaching machine An instructional device in the form of a special purpose computer comprising a display device for displaying teaching materials and other information, a keyboard for the student to make a response to the given information, and a control circuit; wherein s... | 12/28/1976 |
| 3991489 | Educational device for learning the fundamentals of an automotive carburetor system An educational kit for teaching the parts and operation of a typical automotive carburetion system is disclosed. The kit comprises audiovisual instructional equipment, a simulator board upon which is graphically depicted indicia representing a schematic d... | 11/16/1976 |
| 3991488 | Educational device for learning principles of standard transmission An educational kit for teaching the basic principles involved in the operation and use of a standard transmission as found in an automobile is disclosed. The kit comprises in combination instructional equipment, a simulator board having printed thereon gr... | 11/16/1976 |
| 3990158 | Educational device for learning the fundamentals of automotive fuel system An educational kit for teaching the parts and operation of a typical automotive fuel system is disclosed. The kit comprises audiovisual instructional equipment, a simulator board upon which is graphically depicted indicia representing a schematic diagram ... | 11/09/1976 |
| 3990157 | Educational device for learning the fundamentals of a diesel engine and fuel injector system An educational kit for teaching the parts and operation of a typical diesel engine assembly is disclosed. The kit comprises audiovisual instructional equipment, a simulator board upon which is graphically depicted indicia representing a schematic diagram ... | 11/09/1976 |
| 3987557 | Educational device for learning the fundamentals of an automotive drum brake system An educational kit for teaching the parts and operation of a typical automotive drum brake assembly is disclosed. The kit commprises audiovisual instructional equipment, a simulator board upon which is graphically depicted indicia representing a schematic... | 10/26/1976 |
| 3986278 | Educational device for learning transmission drive shaft, and axle operation An educational kit for teaching the operation of an automobile transmission is disclosed. The kit comprises audiovisual instructional equipment, a simulator board upon which is graphically depicted a schematic sectional view of an automobile transmission,... | 10/19/1976 |
| 3986277 | Educational device for learning disc brake fundamentals An educational kit for teaching the operation and mechanism of automotive disc brakes is disclosed. The kit comprises audiovisual instructional equipment, a simulator board upon which is graphically depicted indicia representing a schematic diagram of an ... | 10/19/1976 |
| 3986276 | Educational device for learning suspension system fundamentals An educational kit for teaching the operation and component parts of an automobile suspension and steering system is disclosed. The kit comprises an audio-visual instructional means, a simulator board upon which is graphically depicted indicia representin... | 10/19/1976 |
| 3932948 | Audio-visual learning system A learning system is disclosed which can provide individualized instruction for each student. The student brings to a terminal a film record, an audio record and a tape cassette. The tape cassette includes a magnetic tape on which directions, addresses an... | 01/20/1976 |
