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US Patent: 1,148,202
Tool Holder
Patentees: Howard P. Swinburne (exact or similar names) - Glasgow, Lanarkshire County, Scotland George S. Crawford (exact or similar names) - Glasgow, Lanarkshire County, Scotland USPTO Classifications: 279/60 Tool Categories: metalworking machines : drilling and boring : drilling and boring tool holders metalworking machines : drilling and boring : drill presses : drill press chucks Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 25, 1912 Granted: Jul. 27, 1915 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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