US Patent: 1,704,031
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| Antifriction nut
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Patentee:
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| Rudolph G. Boehm (exact or similar names) - Sugar Land, TX |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Mar. 05, 1929 |
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Jeff Joslin
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Description: |
| This patent is sometimes identified as the genesis of the recirculating-ball mechanism, but it dates over a half century after the earliest such patent we've found, 155,862. |
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