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US Patent: 2,473,963
Speed selection unit
Patentee: Robert E. McKelvey (exact or similar names) - Los Angeles, CA USPTO Classifications: 408/128, 474/77, 474/78, 474/89 Tool Categories: metalworking machines : drilling and boring : drill presses woodworking machines : wood drilling and boring : drill presses Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 28, 1948 Granted: Jun. 21, 1949 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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