US Patent: 62,476
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Improvement in lock-up safety-valves
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Patentees:
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Daniel G. Coppin (exact or similar names) - Cincinnati, OH |
Gilbert H. Clemens (exact or similar names) - Cincinnati, OH |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Feb. 26, 1867 |
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Jeff Joslin
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Description: |
Of interest because co-inventor Clemens also held sawmill patents. |
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