US Patent: 278,135
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| Wrench
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Patentee:
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| Jerome Miller Hamrick (exact or similar names) - Buffalo Gap, TX |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 21, 1883 |
| Granted: |
May 22, 1883 |
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Patent Pictures:
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J. M. Hamrick patent May 22, 1883 |
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Stan Schulz
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Description: |
| The patented features include the open end wrench in the fixed jaw, the movable jaw with two bearing surfaces that are not aligned with each other, and the swinging loop ratchet latch with its spring. |
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