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US Patent: 223,119
Belt Gearing and Shifting Mechanism for Applying Driving Power with Varying Speed
Patentee: Jacob S. Detrick (exact or similar names) - Baltimore, MD USPTO Classifications: 474/83 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine speed and direction changing mechanisms industrial machines : industrial machine mechanisms : industrial machine pulleys and belt drive mechanisms Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 07, 1879 Granted: Dec. 30, 1879 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Detrick & Harvey Machine Co.

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