US Patent: 543,558
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| Pipe Forming Machine
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Patentees:
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| Charles Oberle (exact or similar names) - North Tarrytown, Westchester County, NY |
| Ernst Faller (exact or similar names) - North Tarrytown, Westchester County, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 30, 1892 |
| Granted: |
Jul. 30, 1895 |
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Joel Havens
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