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US Patent: 411,580
Shingle-sawing machine
Patentee: John Challoner - Oshkosh, WI USPTO Classifications: 83/453, 83/704 Tool Categories: woodworking machines : specialty machines : shingle machines Assignees: None Manufacturer: Challoner Co. - Oshkosh, WI Witnesses: Alice Jones James H. Merrill	Patent Dates: Applied: Nov. 17, 1888 Granted: Sep. 24, 1889 Patent Pictures: USPTO Images Google Patents Report data errors or omissions "Vintage Machinery" entry for Challoner Co.

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