US Patent: 1,888,222
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| Screw Driver
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Patentees:
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| Harry B. Curtis (exact or similar names) - Huntington, Fairfield County, CT |
| Arthur E. Keating (exact or similar names) - Bridgeport, Fairfield County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 26, 1931 |
| Granted: |
Nov. 22, 1932 |
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Patent Pictures:
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1 | 2
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Harry B. Curtis & Arthur E. Keating patent Nov. 22, 1932 - sheet 1 |
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Stan Schulz
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Description: |
| Handle structure for a removable screwdriver bit, including the internal metallic portion with a roughened exterior. The portion at the lower portion of the handle may be formed with flat sides suitable for manipulation by a wrench. The interior end of the bit has a slight taper so it will firmly wedge in the metallic holder. The bulk of the handle is formed of preferably insulating material which is molded around the metallic bit holder. |
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