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US Patent: 122,850
Improvements in Land Carriages
Patentee:
Robert Crouch Parvin - Philadelphia, PA

USPTO Classifications:
305/122, 305/195, 305/40

Tool Categories:
propulsion and energy : steam apparatus : steam traction engines : tracks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jan. 16, 1872

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Northwestern Parvin Steam Motor Mfg. Co.

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