...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 |
| 4685851 | Rail car tipplers and tippler installations A rail car tippler installation has an open-sided tippler with a rotatable structure (8) comprising a main longitudinal beam (16) mounted on end pivots (10, 18), said beam supporting a rail car platform (2) that substantially spans the distance between th... | 08/11/1987 |