US Patent: 1,699,306
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Improvement in Screw-Drivers
Gripping Screwdriver
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Patentee:
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| Edward L. Millen (exact or similar names) - Brookline, MA |
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Patent Dates:
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| Applied: |
Jul. 05, 1928 |
| Granted: |
Jan. 15, 1929 |
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Patent Pictures:
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Steve Gosselin
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Description: |
| Movement of the slide forward on the shaft causes the spring loaded screw holding portion of the blade to expand out of the slot and holds the screw in place. Also see2472673 |
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