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Patent number:
Patent Date:
US Patent: 1,403,958
Clamp
Hand-Screw Clamp
Patentee:
Harry V. Holman (
exact
or
similar
names) - Chicago, IL
USPTO Classifications:
269/220
,
269/242
,
269/285
Tool Categories:
work holding
:
clamps
:
hand screws
Assignees:
None
Manufacturer:
Adjustable Clamp Co.
- Chicago, IL
Witnesses:
Unknown
Patent Dates:
Applied:
May 09, 1921
Granted:
Jan. 17, 1922
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Carl Matthews
Description:
Holman characterizes this patent as an improvement on Jorgensen's Dec. 3, 1901 hand-screw patent (
687836
).
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