US Patent: 1,055,724
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Pipe Wrench
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Patentee:
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Horace Levaunt Dickson (exact or similar names) - San Leandro, CA |
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Patent Dates:
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Applied: |
Jul. 08, 1912 |
Granted: |
Mar. 11, 1913 |
Patent Pictures:
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Horace L. Dickson Pat. Mar. 11, 1913 |
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Stan Schulz
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Description: |
The spring pulls the jaw closed; cams on the handle segment act to lock the jaw adjustment and wedge gripping jaw segments against the pipe.
A known example of this wrench marked "Dickson Automatic 10 // Pat. Sept. 30, 1913" reflects Canadian patent number CA-150,764.
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