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US Patent: 1,327,561
Tool Holder
Patentee: Arthur E. Johnson (exact or similar names) - Chicago, Cook County, IL USPTO Classifications: 29/35.5 Tool Categories: metalworking machines : metal shapers : metal shaper tool holders metalworking machines : metal lathes : lathe tool holders and tool posts metalworking machines : metal planers : metal planer tool holders Assignees: Arthur E. Johnson - Chicago, Cook County, IL William B. Pierce - Chicago, Cook County, IL Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 14, 1917 Granted: Jan. 06, 1920 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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