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| All Patents in class 369/266 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,820,154 | Aug. 25, 1931 | W.J. Peets | Phonograph driving mechanism | ||
| 1,823,555 | Sep. 15, 1931 | J.M. Naul | Electric phonograph motor | ||
| 1,838,047 | Dec. 22, 1931 | H.L. Zabriskie | Phonograph turntable mechanism | ||
| 1,838,060 | Dec. 22, 1931 | W.J. Peets | Phonograph turntable mechanism | ||
| 1,929,092 | Oct. 03, 1933 | J.M. Naul, F. Diehl | Two-speed phonograph driving device | ||