US Patent: 362,661
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| Wrench
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Patentee:
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| William B. Risdon (exact or similar names) - Trenton, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 30, 1886 |
| Granted: |
May 10, 1887 |
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Patent Pictures:
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William B. Risdon patent May 10, 1887 |
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Stan Schulz
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Description: |
| A pin on a spring lever on the side of the jaw fits into one of several slots in the shank to hold the adjustment.
A June 4, 1887 "Scientific American" notice about this patent was reprinted in the December 1988 "Missouri Valley Wrench Club Newsletter." |
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