US Patent: 1,950,362
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Patentee:
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| Howard H. Manning (exact or similar names) - Meadville, PA |
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Patent Dates:
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| Applied: |
Feb. 08, 1932 |
| Granted: |
Mar. 06, 1934 |
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Patent Pictures:
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Howard H. Manning patent March 6, 1934 |
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Stan Schulz
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Description: |
| The patent is for the arcuate tongue and groove connection between the two "legs," and the parallel series of grooves to accomodate adjustment to a range of sizes, combined with the slot for the pivot bolt.
Early ChanneLLock pliers bear this patent number. Some also are marked "PAT. IN CAN. 1933" (Pat. no. CA-336,943 granted Nov. 7, 1933). |
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