US Patent: 1,971,289
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Screw driver
Ratcheting Screwdriver
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Patentees:
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| John Herbert Abramson (exact or similar names) - Rockford, IL |
| Edwin C. Swanson (exact or similar names) - Rockford, IL |
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Patent Dates:
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| Applied: |
Jun. 10, 1933 |
| Granted: |
Aug. 21, 1934 |
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Patent Pictures:
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Steve Gosselin
"Vintage Machinery" entry for Greenlee Brothers & Co.
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Description: |
| The main claim of this Patent is to encase the ratchet mechanism, for the protection of the workman, his work piece and the tool. Sold as the Greenlee #451,example marked with Patent number, also see Patent 2664126 |
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