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US Patent: 417,574
Screw Cutting Tool
Patentee: Karl Mischke (exact or similar names) - New York, NY USPTO Classifications: 279/108, 408/159, 408/74 Tool Categories: metalworking tools : tap and die holders metalworking tools : taps and dies Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 28, 1889 Granted: Dec. 17, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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