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US Patent: 1,421,834
Differential
Patentee:
James Ross - La Porte, IN

USPTO Classifications:
475/230

Tool Categories:
propulsion and energy : internal combustion engines : internal combustion traction engines

Assignees:
Advance Rumely Co. - La Porte, IN

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 09, 1921
Granted: Jul. 04, 1922

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Advance Rumely Co.

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