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Patent number:
Patent Date:
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:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
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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