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Patent number:
Patent Date:
US Patent: 2,481,642
Multiple Tool Head
Patentees:
Charles S. Bohmer (
exact
or
similar
names) - Chicago, Cook County, IL
Carl A. Grunschel (
exact
or
similar
names) - Park Ridge, Cook County, IL
USPTO Classifications:
74/665R
,
74/813L
Tool Categories:
metalworking machines
:
drilling and boring
:
drill presses
:
drill press accessories
metalworking machines
:
drilling and boring
:
drill presses
:
drill press chucks
Assignees:
None
Manufacturer:
Chicago Quadrill Co.
- Des Plaines, Cook County, IL
Witnesses:
none listed
Patent Dates:
Applied:
Jul. 08, 1944
Granted:
Sep. 13, 1949
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Chicago Quadrill Co.
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