US Patent: 51,465
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Improved Wrench
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Patentee:
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John Parker Lindsay (exact or similar names) - New Haven, CT |
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Patent Dates:
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Granted: |
Dec. 12, 1865 |
Patent Pictures:
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John Parker Lindsay patent Dec. 12, 1865 |
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Stan Schulz
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Description: |
The shank of a monkey wrench is strengthened by a rib on the back side.
The corresponding British patent was granted June 28, 1867 (GB-186701894). |
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