US Patent: 513,580
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| Pipe Or Rod Wrench
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| USPTO Classifications: |
| 81/99 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 07, 1893 |
| Granted: |
Jan. 30, 1894 |
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Patent Pictures:
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Abram S. King and Roswell Beardsley patent January 30, 1894 |
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Stan Schulz
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Description: |
| A pivoted secondary handle connects to the swinging hook jaw through a curved slot. A spring between the two handles closes the hook jaw.
The design with modified description and a different drawing received Canadian patent no. CA-46,074 on May 17, 1894. |
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