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| All Patents in class 476/66 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,207,828 | Dec. 12, 1916 | H.L. Zabriskie, G.C. Marx | Portable motor-support | ||
| 2,199,491 | May 07, 1940 | D.H. Heynau | Friction gear transmission | industrial machine speed and direction changing mechanisms | |
| 3,229,539 | Jan. 18, 1966 | L.J. Ablon | Pause Control for Phonograph Driving Mechanism | audio-visual apparatus | |