Concentric intake and exhaust valves for internal combustion engines and the like,申请号US19540416915-传众专利搜索

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发明名称	Concentric intake and exhaust valves for internal combustion engines and the like
摘要
申请公布号	US2756732(A)	申请公布日期	1956.07.31
申请号	US19540416915	申请日期	1954.03.17
申请人	EDWARD OLSON DONALD	发明人	OLSON DONALD EDWARD
分类号	F01L1/28;F01L1/44	主分类号	F01L1/28
代理机构		代理人
主权项
地址

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