US Patent: 2,746,758
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| Chucks
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Patentees:
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| Arthur M. Stoner (exact or similar names) - Madison, New Haven County, CT |
| Girard S. Haviland (exact or similar names) - Wethersfield, Hartford County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 07, 1953 |
| Granted: |
May 22, 1956 |
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Joel Havens "Vintage Machinery" entry for Jacobs Manufacturing Co.
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Description: |
| This patent is an evolution of the Rubber-Flex collet system that reduces friction in that system by adding long metal fingers to engage the jaws of the collet. |
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