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US Patent: 1,548,227
Chuck
Patentee: John J. N. Van Hamersveld (exact or similar names) - Cleveland, OH USPTO Classifications: 279/118 Tool Categories: metalworking machines : metal lathes : metal lathe chucks Assignees: Warner & Swasey Co. - Cleveland, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 17, 1921 Granted: Aug. 04, 1925 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Warner & Swasey Co.

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