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US Patent: 784,244
Machine for screw-threading sheet-metal pipes
Patentee: Edmund Zeh (exact or similar names) - Buffalo, NY USPTO Classifications: 72/101, 72/106 Tool Categories: metalworking machines : sheet metal Assignees: Niagara Machine & Tool Works - Buffalo, NY Manufacturer: Niagara Machine & Tool Works - Buffalo, NY Witnesses: Charles W. Parker C. M. Bentley	Patent Dates: Applied: Jun. 13, 1904 Granted: Mar. 07, 1905 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Niagara Machine & Tool Works

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