Improvements in or relating to rotary valves,申请号GB19470027871-传众专利搜索

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发明名称	Improvements in or relating to rotary valves
摘要
申请公布号	GB641188(A)	申请公布日期	1950.08.09
申请号	GB19470027871	申请日期	1947.10.17
申请人	GESELLSCHAFT DER LUDW. VON ROLL'SCHEN EISENWERKE A.G.	发明人
分类号	F16K43/00	主分类号	F16K43/00
代理机构		代理人
主权项
地址

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