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US Patent: 1,104,255
Drill-chuck
Patentee:
George W. Emrick (exact or similar names) - Brooklyn, NY

USPTO Classifications:
279/33

Tool Categories:
metalworking machines : drilling and boring : drill presses : drill press chucks
woodworking machines : wood drilling and boring : drill presses : drill press chucks

Assignees:
Automatic Drill Chuck Corp. - Detroit, MI

Manufacturer:
Automatic Drill Chuck Corp. - Detroit, MI

Witnesses:
C. Mulreany
S. Andrews

Patent Dates:
Applied: May 24, 1912
Granted: Jul. 21, 1914

Patent Pictures:
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Vintage Machinery entry for Automatic Drill Chuck Corp.
Description:
This patent has improvements to the inventor's earlier patent 1,030,988 intended to make the chuck more durable.

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