US Patent: 1,038,158
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| Tool Holder
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Patentees:
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| Columbus K. Lassiter (exact or similar names) - Richmond, Henrico County, VA |
| Frank E. Bocorselski (exact or similar names) - Richmond, Henrico County, VA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 03, 1912 |
| Granted: |
Sep. 10, 1912 |
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Joel Havens
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