US Patent: 892,111
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| Chain Pipe Wrench
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Patentee:
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| George Amborn (exact or similar names) - New York, NY |
| USPTO Classifications: |
| 81/70 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 08, 1907 |
| Granted: |
Jun. 30, 1908 |
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Patent Pictures:
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George Amborn patent June 30, 1908 |
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Stan Schulz
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Description: |
| Amborn received three chain wrench patents on June 30, 1908 -- this patent, 892,112 and 892,113. Aspects of Amborn's patents were used in chain wrenches produced by Williams.
Arthur C. Fraser & Co. - patent attorneys
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