US Patent: 482,749
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| Wrench
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Patentee:
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| Frank Mossberg (exact or similar names) - Attleborough, MA |
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Patent Dates:
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| Applied: |
Feb. 03, 1892 |
| Granted: |
Sep. 20, 1892 |
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Patent Pictures:
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Frank Mossberg Pat. September 20, 1892 |
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Stan Schulz
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Description: |
| This improvement to Mossberg's September 6, 1892 patent (no. 482,021) keeps the shank of the movable jaw as two parallel rods, but puts the threads on the outer surfaces of the pair. This enlarges and increases the mechanical power of the round knurled adjusting nut. |
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