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US Patent: 493,409
Belt Shifting Apparatus
Patentee: Francis H. Richards (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 474/128 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine pulleys and belt drive mechanisms Assignees: Parker & Whipple Co. - Meriden, New Haven County, CT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 15, 1892 Granted: Mar. 14, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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