Double-acting internal-combustion engine,申请号US19490094832-传众专利搜索

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发明名称	Double-acting internal-combustion engine
摘要
申请公布号	US2530970(A)	申请公布日期	1950.11.21
申请号	US19490094832	申请日期	1949.05.23
申请人	JONES JR ROBERT H	发明人	JR. ROBERT H. JONES,
分类号	F02B75/00	主分类号	F02B75/00
代理机构		代理人
主权项
地址

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