US Patent: 1,782,981
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Screw Driver
Improvement in Screwdriver blades
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Patentee:
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| John A. Anderson (exact or similar names) - Bridgeport, CT |
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Patent Dates:
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| Applied: |
Dec. 24, 1929 |
| Granted: |
Nov. 25, 1930 |
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Patent Pictures:
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Steve Gosselin
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Description: |
| This Patent and two others, 1741349 and 1738405, relate to a serrated/grooved tip, which helps to prevent the slipping off the screw will turning. Sample is marked with Patent #'s 1738405 & 1741349, other Patents pending. Also marked NON-SKID #1 Bridgeport, U.S.A. Also see Patent 267709. |
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