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US Patent: 3,348,432
Portable electric drill with chuck key retaining structure
Patentee: Joseph D. Kieffer, III (exact or similar names) - Camillus, NY USPTO Classifications: 408/241R Tool Categories: handheld power tools : handheld power drills Assignees: Rockwell Mfg. Co. - Pittsburgh, PA Manufacturer: Rockwell Mfg. Co. - Pittsburgh, PA Witnesses: Unknown	Patent Dates: Applied: Oct. 20, 1965 Granted: Oct. 24, 1967 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Rockwell Mfg. Co. Vintage Machinery entry for Porter-Cable Machine Co.

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