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Patent number:
Patent Date:
US Patent: 2,341,959
Piston Expander
Patentee:
Harold K. Switzer (
exact
or
similar
names) - Newport, Campbell County, KY
USPTO Classifications:
29/888.041
,
72/113
Tool Categories:
specialty tools
:
automotive tools
Assignees:
None
Manufacturer:
Unknown
Witnesses:
none listed
Patent Dates:
Applied:
Aug. 03, 1940
Granted:
Feb. 15, 1944
Patent Pictures:
USPTO
(New site tip)
Google Patents
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