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US Patent: 410,321
Belt Tightener
Patentee: Frank R. Hynes (exact or similar names) - Rochester, Monroe County, NY USPTO Classifications: 384/253, 474/113, 474/89 Tool Categories: 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: Mar. 30, 1889 Granted: Sep. 03, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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