US Patent: 83,654
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| Wrench
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Patentee:
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| Frank L. Oliver (exact or similar names) - Scarborough, ME |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Nov. 03, 1868 |
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Patent Pictures:
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Frank L. Oliver Pat. Nov. 3, 1868 |
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Stan Schulz
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Description: |
| The wrench is described as a double-face socket. The socket at right angles to the handle is for the initial loosening and final tightening. The socket in line with the handle is to operated as a "speed wrench." |
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