US Patent: 360,731
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| Wrench
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Patentee:
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| Frank C. Sawhill (exact or similar names) - Pittsburgh, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 15, 1887 |
| Granted: |
Apr. 05, 1887 |
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Patent Pictures:
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Frank C. Sawhill patent April 5, 1887 |
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Stan Schulz
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Description: |
| This self-adjusting pipe and nut wrench is an improvement on pat. no. 351,656.
Triple pivots and a movable jaw that slides freely on the shank of the fixed jaw provide the adjusting mechanism. |
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