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US Patent: 1,756,296
Window-frame machine
Patentee: Sern Madsen (exact or similar names) - Clinton, IA USPTO Classifications: 144/131, 144/203, 144/242.1, 144/5, 144/69 Tool Categories: woodworking machines : specialty woodworking machines Assignees: Curtis Companies, Inc. - Clinton, IA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 27, 1927 Granted: Apr. 29, 1930 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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