US Patent: 2,860,884
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| Clamping jaws for chucks
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Patentees:
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| Harry E. Sloan (exact or similar names) - Hartford, CT |
| Herbert W. Hickey (exact or similar names) - Hartford, CT |
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Patent Dates:
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| Applied: |
Jan. 31, 1957 |
| Granted: |
Nov. 18, 1958 |
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Jeff Joslin
Vintage Machinery entry for Cushman Chuck Co.
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Description: |
| This patent date was seen on a Cushman catalog for their "pinch-type jaws", along with patents 2,757,010, 2,757,009 and 2,904,339. |
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