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US Patent: 2,541,719
Machine Tool Bit Holder
Patentee: John R. Proksa (exact or similar names) - Chicago, Cook County, IL USPTO Classifications: 407/101, 407/108, 407/80, 407/92 Tool Categories: metalworking machines : metalworking machine tool holders Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 21, 1946 Granted: Feb. 13, 1951 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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