...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 |
| 7191856 | Power transmission system for hybrid vehicle A power transmission system for a hybrid vehicle includes a motor/generator and a torque converter. The motor/generator and the torque converter are disposed in series between a crankshaft of an engine and a main shaft of a transmission. A side plate of the torque c... | 03/20/2007 |
| 5924534 | Continuously variable transmission The invention provides a continuously variable transmission which is compact and high in operation efficiency, and allows smooth starting and smooth change-over between forward running and backward running. The continuously variable transmission includes ... | 07/20/1999 |