US Patent: 407,413
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| Pipe Thread Cutting Machine
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Patentees:
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| Thomas McFassen (exact or similar names) - Youngstown, Mahoning County, OH |
| David Rosser (exact or similar names) - Youngstown, Mahoning County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 23, 1888 |
| Granted: |
Jul. 23, 1889 |
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Joel Havens
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