US Patent: 160,179
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| Improvement in Pipe-Wrenches
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Patentee:
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| Daniel Gilbert (exact or similar names) - Waynesborough, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 08, 1875 |
| Granted: |
Feb. 23, 1875 |
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Patent Pictures:
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Daniel Gilbert Pat. Feb. 23, 1875 |
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Stan Schulz
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Description: |
| The patent covers the shape of the chain which is composed of alternate single and double links, the end of the lever to engage the openings in the chain, and the serrations on the inner surfaces of the chain links which grip pipe. |
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