US Patent: 335,481
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| Wrench
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Patentees:
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| Ernest Frederick Rettberg (exact or similar names) - San Antonio, TX |
| Charles Carroll Ellis (exact or similar names) - San Antonio, TX |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 12, 1885 |
| Granted: |
Feb. 02, 1886 |
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Patent Pictures:
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Ernest Frederick Rettberg and Charles Carroll Ellis patent February 2, 1886 |
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Stan Schulz
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Description: |
| Reversible ratchet; jaws adjust by a thumb-screw. |
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