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US Patent: 487,775
Duplex feed mechanism
Patentee: Francis H. Richards (exact or similar names) - Hartford, CT USPTO Classifications: 409/156, 74/425, 74/89.14, 74/89.17 Tool Categories: metalworking machines : milling machines Assignees: Walter Wood - Hartford, CT Manufacturer: Not known to have been produced Witnesses: Emma G. Fowler Henry L. Reckard	Patent Dates: Applied: Mar. 25, 1892 Granted: Dec. 13, 1892 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: The invention is a two-speed feed mechanism. Francis Richards was a professional inventor. and we could not determine who Walter Wood was.

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