US Patent: 482,021
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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: |
Dec. 26, 1891 |
| Granted: |
Sep. 06, 1892 |
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Patent Pictures:
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Frank Mossberg Pat. September 6, 1892 |
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Stan Schulz
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Description: |
| The shank of the movable jaw is made of two rods, one of which is threaded. It is adjusted by a round knurled nut. Parts of the manufacturing process are described in the specifications. Wrenches corresponding to this design cite this patent and Mossberg's September 20, 1892 patent (no. 482,749). |
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