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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 |
| 6270041 | Method for locking moveable point sections An apparatus for mechanically locking the end positions of movable point sections, with two adjusting rods (12, 14 ), each of which is connected with one of the point sections and which are coupled mechanically with one another, with at least one locking ... | 08/07/2001 |
