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US Patent: 1,162,536
Sheet-metal-tube-planishing machine
Patentee: Benjamin F. Winterhoff (exact or similar names) - Elkhart, IN USPTO Classifications: 72/207, 72/248 Tool Categories: metalworking machines : sheet metal : roller seaming machines trade specific : music instrument maker Assignees: None Manufacturer: Winterhoff Tool & Machine Co. - Elkhart, IN Witnesses: Andrew T. Anderson Martha Hoeckele	Patent Dates: Applied: Jun. 18, 1914 Granted: Nov. 30, 1915 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Winterhoff Tool & Machine Co.

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