US Patent: 331,188
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Wrench
Rapid Transit Monkey Wrench
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Patentee:
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| James Du Shane (exact or similar names) - South Bend, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 26, 1885 |
| Granted: |
Nov. 24, 1885 |
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Patent Pictures:
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James Du Shane patent November 24, 1885 |
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Stan Schulz
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Description: |
| A screw-adjust nut wrench provided with means to disengage the screw from the rack teeth to allow quick adjustment.
Du Shane had a second parallel patent for another form of rapid-transit wrench (pat. no. 331,189). |
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