Rotary internal combustion engine,申请号US19570668658-传众专利搜索

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发明名称	Rotary internal combustion engine
摘要
申请公布号	US2839034(A)	申请公布日期	1958.06.17
申请号	US19570668658	申请日期	1957.06.28
申请人	DONALD GRAF ROBERT	发明人	GRAF ROBERT DONALD
分类号	F02B53/00	主分类号	F02B53/00
代理机构		代理人
主权项
地址

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