US Patent: 145,506
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Screw Driver
Improvement in Screwdrivers
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Patentee:
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| Sylvanus R. Kneeland (exact or similar names) - Charlsetown, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 11, 1873 |
| Granted: |
Dec. 16, 1873 |
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Steve Gosselin
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Description: |
| This Patent is for a spring loaded sleeve on a screwdriver, which prevents the screwdriver from slipping off the screw and damaging the surface of the item the screw is being driven into,IE: a piano,or cabinet. Patent 147654 is an improvement of this patent. |
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