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US Patent: 443,718
Grain-weigher
Patentee: Francis H. Richards (exact or similar names) - Hartford, CT USPTO Classifications: 177/14 Tool Categories: Assignees: Pratt & Whitney Co. - Hartford, CT Manufacturer: Not known to have been produced Witnesses: Henry L. Reckard Lewis C. Heermann	Patent Dates: Applied: Aug. 05, 1890 Granted: Dec. 30, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Pratt & Whitney Co.

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