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| All Patents in class 475/295 | |||||
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| Number | Date | Patentee | Title | Type | |
| 887,010 | May 05, 1908 | E.J. McClellan | Speed Change Gearing | metalworking speed changing mechanisms | |
| 2,742,797 | Apr. 24, 1956 | J.A. Perham | Multi-spindle portable power-operated tool | ||
| 3,074,295 | Jan. 22, 1963 | E.P. Bullard, III | Transmission | ||