US Patent: 658,962
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| Pipe Wrench
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Patentee:
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| Thomas E. Ryan (exact or similar names) - San Francisco, CA |
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Patent Dates:
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| Applied: |
Oct. 11, 1899 |
| Granted: |
Oct. 02, 1900 |
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Patent Pictures:
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Thomas E. Ryan Patent October 2. 1900 |
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Stan Schulz
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Description: |
| This improvement to Robert Copland's May 15, 1888 patent (no. 382,799) adds a replaceable "fixed" jaw, and a modification to the "latch."
Corresponding German patent DE-120670 was granted with effective date Nov. 1, 1899. |
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