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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