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| All Patents in class 74/124 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 300,734 | Jun. 17, 1884 | G.H. Preston | Device for changing speed | |
 | 402,538 | Apr. 30, 1889 | C.H. Olson | Tool-driver | |
| 1,080,309 | Dec. 02, 1913 | W. Vollmer | Metal Bending Machine | ||
 | 1,563,178 | Nov. 24, 1925 | G.O. Leopold, T.J. Fegley | Ratchet tool | |
 | 1,762,315 | Jun. 10, 1930 | D.B. Swain, H.A. Ryther | Ratchet screw driver | |
| 1,938,785 | Dec. 12, 1933 | B. Sassen | Transmission Mechanism | ||