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| Patents for James M. Carpenter | |||||
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| Number | Date | Patentee | Title | Type | |
| 113,740 | Apr. 18, 1871 | J.M. Carpenter | Improved Machine for Cutting Screws | metal threading machines | |
| 125,269 | Apr. 02, 1872 | J.M. Carpenter | Improvement in Machines for Threading Wood Screws | screw machines | |
| 391,510 | Oct. 23, 1888 | J.M. Carpenter | Screw Cutting Die | ||
| 1,160,042 | Nov. 09, 1915 | J.M. Carpenter | Tool Holder | tool holders | |