US Patent: 156,365
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Wrenches
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Patentee:
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Benjamin G. Martin (exact or similar names) - New York, NY |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Apr. 06, 1874 |
Granted: |
Oct. 27, 1874 |
Patent Pictures:
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Benjamin G. Martin Pat. Oct. 27, 1874 |
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Stan Schulz
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Description: |
The adjustment of the movable jaw is held by an unusual lever and cam-ring device. |
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