US Patent: RE12,379
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| Ratchet Screw Key
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Patentee:
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| Camille Contal (exact or similar names) - Paris, France |
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Patent Dates:
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| Applied: |
Apr. 15, 1905 |
| Granted: |
Aug. 15, 1905 |
| Reissue Information: |
| Reissue of 751,055 (Feb. 02, 1904) |
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Patent Pictures:
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Camille Contal Pat. August 15, 1905 |
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Stan Schulz
FRANK MOSSBERG Co. Catalog No. 12 (archive.org)
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Description: |
| The patent mentions the sockets, universal joint, and rod handle shown in the drawings. The key item in the patent is the unique spring-loaded "slip-clutch" ratchet section.
The Frank Mossberg Co. took over U.S. production in 1909, and made the Auto-Cle the center of an extensive line of socket sets. A 1910 Frank Mossberg Co. digitized in archive.org provides details of these sets.
Contals' Nov. 7, 1916 "Extensible Tool" patent (no. 1,203,853) is based on the AUTO-CLE. |
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