US Patent: 1,511,226
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| Wrench
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Patentee:
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| Stanley O. Lawrence (exact or similar names) - Chicago, Cook County, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 09, 1922 |
| Granted: |
Oct. 14, 1924 |
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Patent Pictures:
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Stanley O. Lawrence patent Oct. 14, 1924 |
USPTO (New site tip) Google Patents
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Stan Schulz
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Description: |
| Leaf springs press the rollers into engagement in this "roller ratchet." |
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