US Patent: 418,167
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| Screwdriver
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Patentee:
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| Thomas E. Copelin (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 25, 1889 |
| Granted: |
Dec. 31, 1889 |
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Steve Gosselin
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Description: |
| Screwdriver design that allows the lower portion to be turned by your fingers while the portion that contacts your palm remains stationary. Specific application mentioned is for light screws and putting screws in sheet metal. |
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