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US Patent: 129,996
Improvement in Crank-Expanders
Patentee:
Lorens Swenson (exact or similar names) - North Cape, Racine County, WI

USPTO Classifications:
74/44, 74/602

Tool Categories:
propulsion and energy : steam engines : steam engine crank rods

Assignees:
Lorens Swenson - North Cape, Racine County, WI
John B. Smith - Milwaukee, Milwaukee Couny, WI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jul. 30, 1872

Patent Pictures:
USPTO (New site tip)
Google Patents
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