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US Patent: 90,781
Shaft Bearing
Patentee: Salmon W. Putnam, Jr. (exact or similar names) - Fitchburg, Worcester County, MA USPTO Classifications: 384/264 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine bearings Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Jun. 01, 1869 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Putnam Tool Co.

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