US Patent: 187,773
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| Monkey-Wrench
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Patentee:
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| Jay W. Powers (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 12, 1876 |
| Granted: |
Feb. 27, 1877 |
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Patent Pictures:
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Jay W. Powers Pat. February 27, 1877 |
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Stan Schulz
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Description: |
| The wrench is made of malleable iron parts, cast without the use of "cores," so no machine work is needed. The specifications describe the sequence of assembling the parts. |
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