US Patent: 149,641
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| Pipe-Wrenches
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Patentee:
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| Adam Collis (exact or similar names) - Altoona, PA |
| USPTO Classifications: |
| 81/98 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 21, 1874 |
| Granted: |
Apr. 14, 1874 |
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Patent Pictures:
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Adam Collis Pat. April 14, 1874 |
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Stan Schulz
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Description: |
| The wrench is conceived as a stud or pipe wrench. The hard steel die insert provides the "bite," along with the roughened surface on the end of the handle portion. The screw in the head prevents the head from slipping off the handle. |
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