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Patents for William E. Twamley | |||||
Number | Date | Patentee | Title | Type | |
1,997,841 | Apr. 16, 1935 | W.E. Twamley | Gear Selecting and Shifting Mechanism | turret lathes | |
2,780,857 | Feb. 12, 1957 | W.E. Twamley | Tool Holder | metalworking machine tool holders |