US Patent: 265,712
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Screw-Driver
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Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Apr. 03, 1882 |
Granted: |
Oct. 10, 1882 |
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Steve Gosselin
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Description: |
A hole is drilled through the length of the handle, and counterbored in an irregular manner, at the upper end. The shaft is then pushed into place and molten lead, or similar material, is cast to form an irregular plug around its squared end. |
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