US Patent: 133,440
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| Improvement in Gimlets
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Patentee:
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| Charles L. Griswold (exact or similar names) - Chester, CT |
| USPTO Classifications: |
| 81/28 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Nov. 26, 1872 |
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Jeff Joslin (dm)
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Description: |
| The bits for this gimlet handle are bent into an L-shape to resist spinning in the handle. The handle is in two parts to allow the bits to be installed, and has several L-shaped sockets to accommodate bits of various diameters. Griswold followed up with an improvement the next year 143142. |
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