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US Patent: 1,963,613
Supercharging Organization for Internal Combustion Engines
Edgar H. Crossen - Franklin, Venango County, PA

USPTO Classifications:
123/73V, 123/74A

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

Franklin Valveless Engine Co. - Franklin, Venango County, PA

Not known to have been produced

none listed

Patent Dates:
Applied: Feb. 23, 1933
Granted: Jun. 19, 1934

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Franklin Valveless Engine Co.

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