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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 6591705 | Transmission A shiftable gear transmission has a plurality of gear pairs with free gears that can be engaged to one of the shafts by means of shift clutches and fixed gears that are permanently locked to one of the shafts. A start-up clutch arranged at the input side ... | 07/15/2003 |
| 5199738 | Landing gear for semitrailers A landing gear for semitrailers includes a two speed double reduction gear assembly having fewer, smaller, and simpler parts, resulting in a compact double reduction gear assembly and cost efficient landing gear unit with a unique clutch-shifting mechanis... | 04/06/1993 |
