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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:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Charles Elterich

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