US Patent: 363,475
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| Lathe Attachment
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Patentees:
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| John T. McCrosson (exact or similar names) - San Francisco, San Francisco County, CA |
| William Hendry (exact or similar names) - San Francisco, San Francisco County, CA |
| USPTO Classifications: |
| 82/17 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 22, 1887 |
| Granted: |
May 24, 1887 |
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Joel Havens
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