Improvements in or relating to lubricated rotary ball valves,申请号GB19520011445-传众专利搜索

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发明名称	Improvements in or relating to lubricated rotary ball valves
摘要
申请公布号	GB702726(A)	申请公布日期	1954.01.20
申请号	GB19520011445	申请日期	1952.05.06
申请人	ROCKWELL MANUFACTURING COMPANY	发明人
分类号	F16K5/22	主分类号	F16K5/22
代理机构		代理人
主权项
地址

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