...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 5718394 | Web tensioning device A web tensioning device to maintain a pre-selected web tension during web delivery and web roller take-up. The device comprises a web pressure sensing roller, tension pre-selection and conditioning circuitry means associated therewith. A motor controller ... | 02/17/1998 |
| 5706160 | Transmission bandwidth extender/category 5 protector A surge protector module for protecting telecommunications equipment from power and transient surges includes a two-piece interfitting housing, a printed circuit board, a plurality of circuit surge protector devices mounted on the printed circuit board, a... | 01/06/1998 |
| 5657941 | Web tensioning device A web tensioning device to maintain a pre-selected web tension during web delivery and web roller take-up. The device comprises a web pressure sensing roller, tension pre-selection and conditioning circuitry associated therewith. A motor controller respon... | 08/19/1997 |
| 5541375 | Switch for computer pen A switch structure is provided for use in computer pen-based applications which can be easily adapted to perform either as a "writing" pen, an "artist" pen, or a "CAD" pen. The switch structure includes a top compression spring, an actuator, a bottom comp... | 07/30/1996 |
| 5534671 | Switch for computer pen A switch structure is provided for use in computer pen-based applications which can be easily adapted to perform either as a "writing" pen, an "artist" pen, or a "CAD" pen. The switch structure includes a top compression spring, an actuator, a bottom comp... | 07/09/1996 |