US Patent: D138,173
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Design For A Wrench
Auto Grip
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Patent Dates:
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| Applied: |
Aug. 11, 1943 |
| Granted: |
Jun. 27, 1944 |
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Patent Pictures:
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Edward Matthews Design Pat. 138,173 (Jun. 27, 1944) |
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Description: |
| Self adjusting swinging hook-jaw wrench design. The Cleveland Wrench Co. Auto Grip markings include the patent number. The Matthews Wrench Co. Denver Colorado self-adjusting wrench may also be related to this design, along with Matthews' April 28, 1923 patent (no. 1,466,136). |
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