US Patent: 553,008
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| Wrench
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Patentee:
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| Frank Emilius Lodetti (exact or similar names) - Rondout, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 28, 1895 |
| Granted: |
Jan. 14, 1896 |
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Patent Pictures:
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Frank Emilius Lodetti patent January 14, 1896 |
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Stan Schulz
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Description: |
| Screw adjustment using a left- and right-hand threaded shank and parallel stabilizing shaft. The patent applies the principle to nut wrench and combination wrench designs.
The idea of a combined handle and adjusting shaft with left- and right-hand was a European traditional form. |
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