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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:
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