Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 5314337 | Color-coded data input system method and apparatus A color-coded method and apparatus of learning to type is disclosed having three sets of flash cards which teach the location of keyboard symbols and the appropriate finger to employ a given symbol by the use of a predetermined sector-color-coded keyboard... | 05/24/1994 |
| 5269689 | Method for teaching keyboarding A process of teaching the use of keyboards thereby enabling keyboard operators to produce large quantities of printed material in a much shorter time at higher accuracy. The process instructs keyboard students to associate printed material with four speci... | 12/14/1993 |
| 5254008 | Device for teaching music A simple teaching kit for use by music teachers and students at any level to illustrate the theory of music. The kit comprises representations of the treble and bass clefs and two octave sections of a piano keyboard in combination with a plurality of tran... | 10/19/1993 |
| 5230628 | Apparatus for producing operational manual An apparatus produces an operational manual of a certain machine and supplies the same to an operator of the machine. The operational manual teaches how to operate a minimum procedure in order to obtain one of functions with which the machine is equipped.... | 07/27/1993 |
| 5183398 | Apparatus and method for interactive instruction of a student An apparatus and method for instruction of a student which includes interactive guidance of the student through a series of lesson frames includes providing the student with a keyboard having a plurality of keys corresponding to the notes of a musical sca... | 02/02/1993 |
| 5105220 | Operator introduction screen A method and apparatus for coaxing a novice operator into dialogue with a touch screen display and for directing the operator to program the machine including a soft display actuator displayed on the first frame of the touch screen display of the user int... | 04/14/1992 |
| 5096317 | Computer key cover apparatus A cover apparatus including a transparent housing overlying a computer keyboard, wherein the cover apparatus includes a plurality of forward and rear side walls defining rows of openings, wherein each row of openings is arranged overlying rows of computer... | 03/17/1992 |
| 5011412 | Educational keyboard with removable keys An educational keyboard with removable keys, wherein musical tone generation for a given key is in response to correct placement of the key in its corresponding key slot, is disclosed. Incorrect placement results in a sour tone. Lights are also used to in... | 04/30/1991 |
| 4902231 | Learn to type via mnemonic devices, and methods of constructing and utilizing same An educational device for teaching touch typing. The device includes a chart to be place in the view of the student and a series of overlays to be used on the individual student keyboards. The chart and overlays give the student the visual and mental impr... | 02/20/1990 |
| 4836786 | Demonstration calculator A hand-held calculator for use in conducting classroom demonstrations of the operation thereof, including use of the operation instruction key means. The calculator comprises a frame, a keyboard section, data processing means and a display section and whe... | 06/06/1989 |
| 4690644 | Teaching apparatus, particularly for teaching shorthand An apparatus for use in teaching comprises a carrier (10,20) of information that is to form the subject-matter of a lesson; a keyboard (12) having its keys marked with symbols which include those related to the said information; a visual display unit (14)... | 09/01/1987 |
| 4580984 | Simulated keyboard system Method of teaching keyboarding by providing a first simulated keyboard which is substantially the same size as a standard keyboard and which has means for dividing the keys into appropriate standard finger grouping columns and providing a second simulated... | 04/08/1986 |
| 4536160 | Computer keyboard educational toy An educational toy for teaching small children alphanumeric characters and their positions on a conventional keyboard includes a flat base unit having a plurality of surface slots extending partially through the base and second slots between the bottom of... | 08/20/1985 |
| 4466798 | Printed computer training device A printed computer training device having a number of leaves hingedly connected together. A plurality of first leaves have screen display simulating indicia on a first side and keyboard action simulating indicia on a second side. A second leaf, hinged to ... | 08/21/1984 |
| 4358278 | Learning and matching apparatus and method An electronic learning apparatus and methodology is disclosed wherein answer codes to a plurality of questions or tasks are disposed on the periphery of a disc. The answer codes are photo-optically read from the periphery of the disc as the disc is rotate... | 11/09/1982 |
| 4348189 | Method for reading typing and spacing errors A method for rapidly and accurately evaluating the number of errors in a test document typed by a test applicant makes use of an original sample master sheet having subject matter imprinted on it in conventional type with margins and spacing established b... | 09/07/1982 |
| 4314499 | Musical instruments facilitating teaching, composing and improvisation An equal input output learning device that can be added to or built into any musical instrument facilitating the teaching and improvisation of music and muscial theory using the musical instrument itself which device consists of a plurality of 12 switches... | 02/09/1982 |
| 4302513 | Elastic typing medium for reduction of message size During manufacture, a rubber or other elastic sheet is forcibly stretched out and smoothly affixed to an adhesive spread out on a backing of cardboard or similar material. The sheet is suitable for receiving typing from a typewriter, and the entire assemb... | 11/24/1981 |
| 4294557 | Shield for typewriter keyboard and cylinder A portable shield intended to block the student typist's view of the keyboard and cylinder is made of cardboard having creases for folding at convenient locations. One portion of the shield screens the keyboard while another portion screens the cylinder. ... | 10/13/1981 |
| 4290758 | Training aid A U-shaped member is detachably engaged with the upper end of an elongate support member, the lower end of which embraces the shoulder of a student. The U-shaped member receives the back of the student's head and includes a forwardly extending leg to rest... | 09/22/1981 |
| 4281579 | Teaching aid for keyed musical instruments A teaching aid for piano and other keyed musical instruments. The device has switches electrically connected to a matrix array and mechanically linked to each key for detecting each key depression, an LED associated with each key for signalling the keys w... | 08/04/1981 |
| 4253248 | Teaching machine apparatus Printed matter is positioned behind a reflective and transparent surface. A lamp illuminates the printing. A student is instructed to copy the material on a typewriter. When a student begins typing, the lamp turns off and remains off until a predetermined... | 03/03/1981 |
| 4190967 | Keyboard attachment system and method for keyboard training A student learning to use a keyboard device is given brief instruction and then uses the keyboard. The instruction includes a final predetermined key or keyboard element manipulation, which completes instructions to signal the initiation of new instructio... | 03/04/1980 |
| 4075465 | Keyboard overlay An exchangeable overlay for changing the character representations associated with the keys of a keyboard. The overlay is disposed on the keyboard and has openings to receive each key thereof with the inner portion of each opening above an associated key ... | 02/21/1978 |
| 3971140 | Keyboard interceptor ("intermegraf") An upright standard is provided having front and rear sides and mounting means on its lower end for releasable mounting from a support upon which a typewriter may be placed. A generally horizontal panel structure is mounted from the upper end portion of t... | 07/27/1976 |
