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US Patent: 1,252,040
Combination Spring Tool Holder
Patentee: Max Schonbrunn (exact or similar names) - New York, NY USPTO Classifications: 407/10, 407/79, 407/89 Tool Categories: metalworking machines : metal lathes : lathe tool holders and tool posts Assignees: None Manufacturer: Not known to have been produced Witnesses: George W. Naylor C. Bradway	Patent Dates: Applied: Jun. 21, 1917 Granted: Jan. 01, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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