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Patent number:
Patent Date:
US Patent: 2,461,687
Welder's clamp
Patentee:
Fred P. Hopfeld (
exact
or
similar
names) - Elmwood Park, IL
USPTO Classifications:
24/569
,
269/182
,
269/249
,
269/261
,
439/803
Tool Categories:
work holding
:
clamps
:
C clamps
Assignees:
Grand Specialties Co.
- Chicago, IL
Manufacturer:
Grand Specialties Co.
- Chicago, IL
Witnesses:
Unknown
Patent Dates:
Applied:
Jul. 19, 1946
Granted:
Feb. 15, 1949
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Carl Matthews
"Vintage Machinery" entry for Grand Specialties Co.
Description:
This C clamp for arc welding has provision for attaching the ground electrode.
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