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...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 |
| 6023901 | Self-drilling wall repair jack A repair device which is used to restore planarity to concave damage in a drywall board, which is quickly installed by chucking to a reversible power driver in the manner of a drill bit, thus creating its own hole. The device is inserted into the wall cav... | 02/15/2000 |
| 5875606 | Wall repair jack A repair method which is used to restore planarity to concave damage in a wall of gypsum board construction, wherein the device is inserted through a small hole drilled in the damaged area, or inserted from the rear through a hole drilled in the back wall... | 03/02/1999 |
| 5478000 | Device for automatically cutting and dispensing tape A tape dispenser holds a stock roll of tape (3) which has adhesive on one or both sides. A section of tape (4) is played out around an idle roller (7), which at times also translates to form a surplus tape loop (16), and around two or more cutter bars (2)... | 12/26/1995 |
