...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 |
| 5135142 | Garment hanger made from compressed shaped plywood plate A wooden hanger having a shoulder-shaped frame, a hook and a cross bar fixed between both ends of the frame, which is cut from a shoulder-shaped plywood plate formed into such a shape by compressing it in a mold with heat in a press.... | 08/04/1992 |
| 4972891 | Apparatus and method for shaping shingles A method and apparatus for shaping flat rectangular shingle blanks into curved shingles includes a heating chamber and shingle shaping device. The shingle shaping device is comprised of an elongate upwardly convex fixed shaping member and a plurality of h... | 11/27/1990 |
| 4816103 | Process for manufacturing corrugated plywood composites A method and apparatus for forming corrugated plywood composites is disclosed. The apparatus includes a fixed mold component having a corrugated surface and a series of movable mold components having complemental corrugated surfaces movable toward and awa... | 03/28/1989 |
| 4495019 | Plywood bending An integral wood veneer strip having first, second, and third mutually generally perpendicular portions is produced simply and easily. A number of similarly shaped thin strips of wood, with adhesive between them, are placed together to form a linear lamin... | 01/22/1985 |
| 4089732 | Installations for the manufacture of beams composed of glued laminae A press for use in an installation for the manufacture of beams made of glued laminae includes an outer, vertically movable frame having a U-shaped configuration in cross section, an inner stationary frame disposed in the space between the sides of the ou... | 05/16/1978 |
| 4035223 | Laminating traveling press and method Tread plates on mutually opposed endless belts clamp and move a pack of boards horizontally lengthwise between electrodes for setting adhesive between the boards by dielectric heating. The tread plates are engaged by backing members spaced transversely of... | 07/12/1977 |