US Patent: 344,160
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Improvement in Screw-Drivers
Ratcheting Screwdriver
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Patentee:
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| Herbert S. Brownson (exact or similar names) - Portland, ME |
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Patent Dates:
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| Applied: |
Aug. 21, 1885 |
| Granted: |
Jun. 22, 1886 |
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Patent Pictures:
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Steve Gosselin
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Description: |
| This Patent consists of a pawl, a face gears and a pawl operating spring in the handle.Switching blade from left to right is done by pulling the blade downward and twisting it in the direction needed. Example unmarked. |
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