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US Patent: 1,274,436
Tool Holder for Screw Machines
Patentees: John F. Murphy (exact or similar names) - Syracuse, Onondaga County, NY Bernard A. Ryan (exact or similar names) - Syracuse, Onondaga County, NY USPTO Classifications: 29/52, 408/118, 82/148 Tool Categories: metalworking machines : metalworking machine tool holders metalworking machines : screw machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 23, 1917 Granted: Aug. 06, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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