US Patent: 669,570
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Wrench
Improvements in "monkey wrenches"
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Patentee:
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| Abner K. Wolfe (exact or similar names) - Kansas City, KS |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 11, 1900 |
| Granted: |
Mar. 12, 1901 |
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Patent Pictures:
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Patent 669,570 - edited drawing |
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Stan Schulz
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Description: |
| Quick adjust mechanism where a cam lever fulcrumed in a slot in the toothed shank operates a gripping piece within the movable jaw. |
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