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| All Patents in class 475/176 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 317,904 | May 12, 1885 | J.J. White | Hoist | |
 | 452,991 | May 26, 1891 | A.L. Colburn | Spindle feed for drill press | |
| 2,271,817 | Feb. 03, 1942 | A.H. Dall, H. Ernst | Micrometer Mechanism | ||
| 2,933,986 | Apr. 26, 1960 | W. Schroeder | Spindle Control Mechanism | ||