US Patent: RE12,738
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| Pipe Wrench
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Patentee:
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| Ebenezer Fisher (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 28, 1905 |
| Granted: |
Jan. 23, 1906 |
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Patent Pictures:
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Reissue Patent 12,438 - edited drawing |
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Stan Schulz
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Description: |
| Reissue of 773,933, a "girth grip" type pipe wrench with provisions for adapting grip to allow for small variations in pipe sizes or irregular surfaces. Secondary evidence shows Fisher Wrench Co. operated ca. 1903 - 1911, and likely produced a form of this "friction wrench."
Corresponding Canadian patent CA-98,248 shows variant forms for some of the component parts. |
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