US Patent: 610,044
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| Ball-bearing screw-jack
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Patentee:
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| Daniel Glenn (exact or similar names) - Del Rio, TX |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 07, 1897 |
| Granted: |
Aug. 30, 1898 |
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Jeff Joslin
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Description: |
| The inventor independently invented the recirculating-ball mechanism, although he was not the first, being preceded by Crenshaw (patent 155,862), Stevenson (patent 601,451), and Brunthaver (patent 477,642). |
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