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 |
| 4671528 | Safety hitch pin A safety hitch pin having an enlarged upper end or head that is adapted to rest upon apertured parts secured by the pin. An annular retention device or keeper adapted to receive the lower end of the pin therethrough is provided that has a retainer chain a... | 06/09/1987 |