Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7146759 | Two-faced optional mat picture frames This invention discloses composite two faced picture, document and/or other artwork frames, each composed of two separate frames with panes permanently installed on elastomeric pads and fitted to allow pane to pane resilient contact with two sets of displayed materi... | 12/12/2006 |
| 7043859 | Display sign card retainer A display sign has cards that fold on a hinge to display different numerals. An upper latch retains cards in an upper position overlying an upper edge of the cards. The latch has a retaining member that rotates between an open position and a locked position. A lock ... | 05/16/2006 |
| 6959901 | Rotatable book or file holder device A rotatable book holder includes a housing having a chamber to rotatably receive a rotary member which has a number of holes. A pole includes a lower portion secured to the rotary member, and a plate is secured to an upper portion of the pole and includes a number o... | 11/01/2005 |
| 6088973 | Monuments, markers and columbariums with improved display indicia In a first aspect of the disclosure, a monument is shown having a movable element mounted in an opening therein for displaying information. The movable element may be partially or fully recessed in the opening but is constructed so as to be accessible for... | 07/18/2000 |
| 6012242 | Publication viewer A publication viewer for viewing sequential pages of a bound publication, printed on pages attached to a flexible strip of material. The pages include printed text pages and groups of animated pages of drawings or photographs. Indexing notches on the page... | 01/11/2000 |
| 5544436 | Multi-photo display apparatus An apparatus for simultaneously displaying a plurality of photographs, pictures, cards and the like is disclosed. The apparatus incorporates a plurality of display panels having multiple compartments for accommodating any of a variety of standard-sized ph... | 08/13/1996 |
| 5233771 | Selective banner-display device An apparatus for randomly and successively selecting and displaying each one out of a stack of banners comprises a wind-in roller around which the entire stack of banners is wound, front face down, with the leading edges of the banners being staggered in ... | 08/10/1993 |
| 5161321 | Display system utilizing pivot arms, over center spring, and display panel rotatable at least 180 degrees This invention relates to apparatus for display and storage, and more particularly relates to an reversible wall panel system for storage and display. The apparatus provides approximately double the useable space of the area on which it is mounted. The ap... | 11/10/1992 |
| 4769935 | Visible index system with improved hanger A wire hanger for removably affixing the pocket card of a visible index system to a card-supporting frame, tray, or other holder. The hanger has a rectilinear main body portion and integral loops at the opposite ends of that portion. Each loop has two sid... | 09/13/1988 |
| 4616222 | Display sign element with anti-bounce limit stop In a display sign including a plurality of rotatable display elements to be flipped between opposite extreme display positions, a bidirectional limit stop for stopping the motion of said display elements at said extreme positions is configured in the form... | 10/07/1986 |
| 4412621 | Magazine assembly for holding information bearing cards and the like A magazine assembly for holding information bearing cards and the like having support pins attached along one of the sides of the cards, includes a stand supporting a pair of spaced plates each having a plurality of openings inwardly spaced along the oute... | 11/01/1983 |
| 4411084 | Display with changeable characters A display having mechanically changeable characters and a support for the display are disclosed. The display comprises an array of mechanical flip-flop elements which can each be rotated between two orientations exposing one of two visually different side... | 10/25/1983 |
| 4393611 | Perpetual calendar An improved permanent calendar assembly is disclosed which is to display any month of any year. The construction includes a flat main body with forwardly protruding tracks for removable mating with date columns. For flexibility of display, end pieces carr... | 07/19/1983 |
| 4370821 | Rotary magazine assembly for holding information bearing cards A rotary magazine assembly for holding information bearing cards and the like having support pins attached along one of the sides of the cards, includes a stand with spaced apart plates for supporting the cards for rotary movement about the central axis o... | 02/01/1983 |
| 4270290 | Revolving self-service display stand A frame for a self-service sales display device is provided with pockets on each side of the frame. Guide members are provided on the entry side or wall of the frame and on the side or wall of the frame opposite the entry side for guiding the flat members... | 06/02/1981 |
| 4215511 | Toy television set with musical box A toy television set with a musical box whereby words, television scenes on a plurality of leaves can be seen in succession through a transparent screen with the accompaniment of music played by the musical box. The device has a case modeled after the cab... | 08/05/1980 |
| 4165575 | Rotary card file A plurality of rotatable card holders are disposed end-to-end on a horizontal fixed shaft supported at its ends by a tubular frame. Each of the card holders comprises two coaxial sections each of which is generally cylindrical with a peripheral web for ho... | 08/28/1979 |
| 4102069 | Revolving self-service display stand A revolving self-service sales display device is provided which comprises a vertically disposed revolving carrousel or pedestal carried on a base, which base can be set on a counter top, on the floor or on stands of any desired height. The revolving pedes... | 07/25/1978 |
| 4079532 | Photograph display stand A picture display device includes an array of picture frames hinged together, as by an endless belt, in which the inner ends of the frame sections are attached to the endless belt. The frames radiate outwardly from the belt and are arrangeable in a pair o... | 03/21/1978 |
| 4063648 | Display system for samples A display system for displaying samples, for example, floor covering samples such as carpets and rugs. A perforated support board supports samples which are removably attached thereto by separable fasteners. Stand means may be provided to hold the support... | 12/20/1977 |
| 4060919 | Data retrieving device A device for retrieving data such as individual names, firm names, addresses, telephone numbers, and so forth, which is constructed in a handy and compact type, and which comprises a rotatable data recording member having a plurality of data indicating pa... | 12/06/1977 |
