US Patent: 462,280
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| Monkey Wrench
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Patentees:
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| Andrew H. Gallup (exact or similar names) - Chicago, IL |
| William Sallee (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 29, 1891 |
| Granted: |
Nov. 03, 1891 |
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Patent Pictures:
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Andrew H. Gallup and William Sallee patent November 8, 1891 |
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Stan Schulz
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Description: |
| Fixed jaw includes hammer poll and tack claw; the movable jaw slides on parallel shafts. One shaft has fine rack teeth. A spring -loaded catch on the movable jaw engages with the rack teeth to hold the adjustment. |
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