Packing devices for needle valves,申请号US19580731701-传众专利搜索

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发明名称	Packing devices for needle valves
摘要
申请公布号	US2948556(A)	申请公布日期	1960.08.09
申请号	US19580731701	申请日期	1958.04.29
申请人	CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE	发明人	EPAIN RAYMOND;JOHANNIN PIERRE;VODAR BORIS
分类号	F16K41/02	主分类号	F16K41/02
代理机构		代理人
主权项
地址

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