US Patent: 2,440,584
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| Screw or Nut Driver
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Patentee:
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| Louis Frank (exact or similar names) - Fellows, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 14, 1944 |
| Granted: |
May 04, 1948 |
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Patent Pictures:
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Louis Frank Pat. May 4, 1948 |
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Stan Schulz
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Description: |
| The patent covers small screwdrivers and nut drivers attached to a fingertip thimble by a pivot so they can be rotated by the thumb and second finger. |
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