US Patent: 347,580
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| Wrench
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Patentee:
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| James B. Dean (exact or similar names) - Stockton, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 05, 1886 |
| Granted: |
Aug. 17, 1886 |
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Patent Pictures:
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James B. Dean patent August 17, 1886 |
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Stan Schulz
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Description: |
| A cam-lever base of the lower jaw latches into notches in the shank. In the pipe wrench version, a lever handle attached to that base tightens the hook jaw.
Ken Cope's "American Wrench Makers 1830-1930" cites an 1895 "Scientific American" listing announcing these wrenches to the trade. |
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