US Patent: 107,539
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Wrench
Improvement in Wrenches
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Patentee:
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| Franklin P. Rand (exact or similar names) - Pawtucket, RI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Sep. 20, 1870 |
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Patent Pictures:
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F. P. Rand Pat. Sept. 20, 1870 |
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Stan Schulz
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Description: |
| This unusual patent has two distinct features. The first is the interchangeable wrench jaws that fit into a socket. The second is the ratchet and pawl action which changes the angle of the jaws in relation to the handle. |
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