US Patent: 137,875
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| Magnetic Chucks for Lathes and Planers
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Patentees:
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| James Archibald Jaques (exact or similar names) - Tottenham, Middlesex County, England |
| John Thomas Oakley (exact or similar names) - Bermondsey, Surrey County, England |
| Louis Sterne (exact or similar names) - Westminister, Middlesex County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 17, 1872 |
| Granted: |
Apr. 15, 1873 |
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Joel Havens
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