US Patent: 615,113
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| Machinist's Clamp
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Patentees:
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| Leon W. Stockbridge (exact or similar names) - Portland, ME |
| Frank C. Rollins (exact or similar names) - Farmington, ME |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 27, 1898 |
| Granted: |
Nov. 29, 1898 |
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Patent Pictures:
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Leon W. Stockbridge and Frank C. Rollins patent November 29, 1898 |
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Stan Schulz
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Description: |
| Screw and rack and pawl adjustable clamp. The specifications note it would also work as a vise or wrench. |
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