US Patent: 452,907
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| Wrench
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Patentees:
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| Enoch Ohnstrano (exact or similar names) - Jamestown, NY |
| Oscar Gustafson (exact or similar names) - Jamestown, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 07, 1891 |
| Granted: |
May 26, 1891 |
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Patent Pictures:
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Enoch Ohnstrano and Oscar Gustafson patent May 26, 1891 |
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Stan Schulz
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Description: |
| Rack teeth on the shank, a toothed pawl in the movable jaw, and a thumb lever to operate the toothed pawl. |
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