US Patent: 51,384
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| Improvement in scroll-chucks
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Patentee:
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| A. F. Cushman (exact or similar names) - Hartford, CT |
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Patent Dates:
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| Granted: |
Dec. 05, 1865 |
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Patent Pictures:
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Jeff Joslin
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Description: |
| A few months before this patent was issued, the American Gun Lock Co. was established and quickly changed its name to the Warwick Tool Co. That firm made a range of metalworking hand tools plus lathe chucks and drill chucks. In 1872 they were taken over by the Hubbard Hardware Co., which became Hubbard & Curtiss Mfg. Co., which is believed to have continued making this chuck. |
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