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US Patent: 3,685,843
Insulated chuck
Patentee: Anthony Jacyno (exact or similar names) - Aurora, IL USPTO Classifications: 174/138D, 279/158, 310/50, 408/239R, 408/710 Tool Categories: handheld power tools : handheld power drills Assignees: Portable Electric Tools, Inc. - Chicago, IL Manufacturer: Portable Electric Tools, Inc. - Chicago, IL Witnesses: Unknown	Patent Dates: Applied: Jan. 12, 1970 Granted: Aug. 22, 1972 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Portable Electric Tools, Inc.

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