US Patent: 1,264,363
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Chuck Ball-bearing, three-jaw chuck with quick-release feature.
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Patentee:
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Eugene C. Bowers (exact or similar names) - Kalamazoo, MI |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Aug. 15, 1916 |
Granted: |
Apr. 30, 1918 |
Patent Pictures:
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All patent images are condensed above. |
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George Langford
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Description: |
The three jaws have inclined thrust faces which facilitate loosening of the jaws when the bit is removed. |
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