US Patent: 518,472
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| Screw Driver
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Patentee:
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| Samuel Idell Snyder (exact or similar names) - Clearfield, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 10, 1894 |
| Granted: |
Apr. 17, 1894 |
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Patent Pictures:
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Samuel Idell Snyder patent April 17, 1894 |
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Stan Schulz
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Description: |
| The blade tip has a parallel spring leaf to keep the screwdriver firmly tight in the slot in the head of the screw.
Improved by January 22, 1895 patent no. 532,830. |
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