US Patent: 98,933
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| Improvement in screw-drivers
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Patentee:
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| David Drummond (exact or similar names) - McGregor, IA |
| USPTO Classifications: |
| 81/29 |
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Patent Dates:
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| Granted: |
Jan. 18, 1870 |
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Patent Pictures:
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1 | 2
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Steve Gosselin
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Description: |
| An eBay sale of a "speed drill screwdriver" had this description: "It is 10 1/2 inches long and has a copper plate on the end. The plate is engraved with a wheat pattern, Drummonds Patent Jan 18th 70." |
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