US Patent: 41,995
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Improved Screw-Wrench
Hewet Union Wrench
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Patent Dates:
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| Granted: |
Mar. 22, 1864 |
| Antedated: |
Jan. 25, 1864 |
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Patent Pictures:
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Hewet Union Wrench Pat. Jan 25, 1864 |
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Description: |
| Extended externally threaded and fluted tube serves dual function of adjusting the moveable jaw and forming most of the wrench handle. Mfr. / agent name taken from Ken Cope's "American Wrench Makers 1830-1930." Martin Donnelly's mjdtools auctions offered one marked "W.L. Miller, 479 1st Ave., New York, New York" |
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