Improvements in butterfly or like valves,申请号GB19530034181-传众专利搜索

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发明名称	Improvements in butterfly or like valves
摘要
申请公布号	GB781373(A)	申请公布日期	1957.08.21
申请号	GB19530034181	申请日期	1953.12.08
申请人	MARIE CHARLES EMILE HENRION	发明人
分类号	F16K1/22	主分类号	F16K1/22
代理机构		代理人
主权项
地址

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