US Patent: 4,644,831
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| Adaptor Sleeve
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Patentee:
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| Miriam Yang (exact or similar names) - Ta Li Hsiang, Taichung Hsien Taiwan |
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Patent Dates:
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| Applied: |
Jul. 05, 1985 |
| Granted: |
Feb. 24, 1987 |
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Patent Pictures:
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Miriam Yang patent February 24, 1987 |
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Stan Schulz
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Description: |
| Holder socket, with an internal "U" shaped spring retaining clip.
Known example appears on a 1/4" hex-drive flexible shaft extension for screwdriver or nut driver bits. It is marked U.S.A. PAT 4644831 ROC PAT 27181.
Cites pat. nos. 717,199, 853,930, 1,056,848, 2,158,728, 2,677,294, 3,665,791, and 3,935,762. |
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