US Patent: 645,665
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| Wrench
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Patentee:
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| Henry B. Hartford (exact or similar names) - Standish, ME |
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Patent Dates:
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| Applied: |
Jul. 22, 1899 |
| Granted: |
Mar. 20, 1900 |
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Patent Pictures:
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Henry B. Hartford patent March 20, 1900 |
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Stan Schulz
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Description: |
| Toothed curved jaws and screw clamping action for gripping and turning pipes and rods.
The patent has been associated with the WEEKS & WHITNEY (Sebago Lake, ME) wrench introduced in 1913. That wrench has straight jaw faces with sharp tips for grasping the round heads of carriage bolts. |
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