US Patent: 600,158
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| Ratchet Wrench
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Patentee:
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| Robert J. Miller (exact or similar names) - Placerville, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 11, 1897 |
| Granted: |
Mar. 08, 1898 |
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Patent Pictures:
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Robert J. Miller patent March 8, 1898 |
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Stan Schulz
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Description: |
| Reversible ratchet with screw-adjustable jaws in the ratchet head. The adjusting screw has left- and right-hand threads, with a center pinion that is turned by a gear / thumb piece that extends through the back of the ratchet head. |
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