US Patent: 474,566
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| Wrench
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Patentee:
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| Silas B. Rittenhouse (exact or similar names) - Liberty Mills, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 22, 1891 |
| Granted: |
May 10, 1892 |
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Patent Pictures:
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Silas B. Rittenhouse patent May 10, 1892 |
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Stan Schulz
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Description: |
| Springs between the frame and base of the jaws keep the jaws open. An adjusting rod with fingers has screw adjustment toward the end of the handle. |
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