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| All Patents in class 384/586 | |||||
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| Number | Date | Patentee | Title | Type | |
| 251,024 | Dec. 20, 1881 | A.J. Brill | Wheel for Transmitting Power | human powered apparatus | |
| 878,072 | Feb. 04, 1908 | J.W. Lambert | Transmission Gear for Automobiles | automobiles | |
| 2,955,392 | Oct. 11, 1960 | G.A. Carlson | Belt pulley and bearing assembly | polishing and buffing machinery | |