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US Patent: 10,403
Machinery for mortising frames of window-blinds
Patentee: D. M. Cummings (exact or similar names) - North Enfield, NH USPTO Classifications: 144/71, 408/50 Tool Categories: woodworking machines : joint making machines : mortising machines woodworking machines : specialty woodworking machines : windowblind machines woodworking machines : wood drilling and boring : mortising machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Benjamin S. Fletcher William Huse	Patent Dates: Granted: Jan. 10, 1854 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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