US Patent: D164,505
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| Self-Adjusting Wrench Or Similar Article
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Patentee:
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| John V. Larson (exact or similar names) - Chicago, IL |
| USPTO Classifications: |
| D8/23 |
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Patent Dates:
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| Applied: |
Jul. 13, 1949 |
| Granted: |
Sep. 11, 1951 |
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Patent Pictures:
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John V. Larson design patent September 11, 1951 |
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Stan Schulz
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Description: |
| Self-adjusting hook jaw wrench with a covered coil spring that closes the jaw.
Patent no. 1,900,358 is cited as a reference. Larson's utility patent no. 2,645,145 covers the functional aspects.
Produced and marketed as "TRIG-O-MATIC."
Cited as a reference in D186,132. |
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