Improvements in butterfly valves,申请号GB19360013039-传众专利搜索

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发明名称	Improvements in butterfly valves
摘要
申请公布号	GB475154(A)	申请公布日期	1937.11.11
申请号	GB19360013039	申请日期	1936.05.08
申请人	KOJI IIDA	发明人
分类号	F16K31/53	主分类号	F16K31/53
代理机构		代理人
主权项
地址

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