Sealing devices for stems of fluid flow control valves,申请号GB19570006849-传众专利搜索

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发明名称	Sealing devices for stems of fluid flow control valves
摘要
申请公布号	GB828937(A)	申请公布日期	1960.02.24
申请号	GB19570006849	申请日期	1957.03.01
申请人	ROCKWELL MANUFACTURING COMPANY	发明人
分类号	F16K41/04	主分类号	F16K41/04
代理机构		代理人
主权项
地址

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