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US Patent: 1,987,978
Back gear interlock
Patentee: Edward Sobolewski (exact or similar names) - Cincinnati, OH USPTO Classifications: 74/483R, 74/842 Tool Categories: metalworking machines : drilling and boring : drill presses : radial drill presses Assignees: Cincinnati Bickford Tool Co. - Cincinnati, OH Manufacturer: Cincinnati Bickford Tool Co. - Cincinnati, OH Witnesses: Unknown	Patent Dates: Applied: Dec. 09, 1930 Granted: Jan. 15, 1935 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Cincinnati Bickford Tool Co.

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