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US Patent: 196,205
Improvement in drill-chucks
Patentees: Andrew H. Briggs (exact or similar names) - Jersey City, NJ Charles Elterich (exact or similar names) - New York, NY USPTO Classifications: 279/49 Tool Categories: woodworking tools : hand drills : drill chucks Assignees: Andrew H. Briggs - Jersey City, NJ Charles Elterich - New York, NY Manufacturer: Charles Elterich - New York, NY Witnesses: Benjamin W. Hoffman Frederick Haynes	Patent Dates: Applied: Aug. 20, 1877 Granted: Oct. 16, 1877 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Charles Elterich

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