US Patent: 777,955
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| Wrench
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Patentee:
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| Frederick H. Kanning (exact or similar names) - East St. Louis, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 19, 1904 |
| Granted: |
Dec. 20, 1904 |
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Patent Pictures:
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Frederick H. Kanning patent Dec. 20, 1904 |
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Stan Schulz
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Description: |
| Adjustable angle with a sliding pin engaging holes in a rotating head; "shoulders" on the rotating head would support most of the strain with the open end in line or at a 90 degree angle to the handle.
The rotating head feature appears in Kanning's subsequent patent no. 841,692. |
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