Balanced duplex valve head and seat member,申请号US19520301054-传众专利搜索

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发明名称	Balanced duplex valve head and seat member
摘要
申请公布号	US2709451(A)	申请公布日期	1955.05.31
申请号	US19520301054	申请日期	1952.07.26
申请人	LA BOUR HARRY E	发明人	BOUR HARRY E. LA
分类号	F16K39/02	主分类号	F16K39/02
代理机构		代理人
主权项
地址

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