US Patent: 1,421,834 - Differential


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US Patent: 1,421,834

Differential

Patentee:

James Ross (exact or similar names) - La Porte, IN

USPTO Classifications:

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 (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Advance Rumely Co.

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