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US Patent: 963,144
Tool Holder
Patentee: Bengt M. W. Hanson (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 407/67, 411/393, 82/161 Tool Categories: metalworking machines : metal lathes : lathe tool holders and tool posts Assignees: Pratt & Whitney Co. - Hartford, Hartford County, CT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 14, 1909 Granted: Jul. 05, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pratt, Whitney & Co.

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