US Patent: 592,162
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| Wrench
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Patentee:
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| Harry H. McKelvey (exact or similar names) - Coraopolis, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 17, 1897 |
| Granted: |
Oct. 19, 1897 |
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Patent Pictures:
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Harry H. McKelvey patent October 19, 1897 |
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Stan Schulz
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Description: |
| Quick adjust nut wrench with the adjustment held by a side latch on the movable jaw which engages notches cut in the side of the main shank. The latch is held in engagement with the shank notches by a coil spring. |
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