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US Patent: 3,454,143
Power-operated tool
Patentees: Gerhardt A. Dobslaw (exact or similar names) - Fayetteville, NY Warren A. Berube (exact or similar names) - Camillus, NY Harry L. Beam (exact or similar names) - Jamesville, NY USPTO Classifications: 192/34, 192/83, 192/94 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: Feb. 09, 1967 Granted: Jul. 08, 1969 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.
Description: The invention is a double-clutch mechanism that provides selectable drill and driver functions.

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