US Patent: 123,040
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Improvement in Wrenches
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Patentee:
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Philip Nichols (exact or similar names) - Troy, NY |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Jan. 23, 1872 |
Patent Pictures:
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Philip Nichols Pat. Jan. 23, 1872 |
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Stan Schulz
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Description: |
A right- and left-hand screw moves jaws that slide on a transverse frame member. |
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