<Li> U.S. Patent 2,417,253 was issued on March 11, 1947--Two - cycle gas engine . </Li> <Li> U.S. Patent 2,475,841 was issued on July 12, 1949--Automatic refrigeration system for long - haul trucks . </Li> <Li> U.S. Patent 2,475,842 was issued on July 12, 1949--Starter generator . </Li> <Li> U.S. Patent 2,475,843 was issued on July 12, 1949--Means operated by a starter generator for cooling a gas engine . </Li>

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