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| All Patents in class 464/93 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,820,154 | Aug. 25, 1931 | W.J. Peets | Phonograph driving mechanism | ||
| 2,173,360 | Sep. 19, 1939 | A.F. Froussard | Shaft Coupling | industrial machine shaft couplings | |
| 2,287,391 | Jun. 23, 1942 | H.E. Musselman | Drill press | drill presses | |
| 2,385,369 | Sep. 25, 1945 | R.A. Niekamp | Shaft coupling | industrial machine shaft couplings | |
| 2,585,025 | Feb. 12, 1952 | H.F. Martin | Drilling machine | drilling and boring | |