Improvements in or relating to apparatus for the control of gas flow,申请号GB19530009312-传众专利搜索

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发明名称	Improvements in or relating to apparatus for the control of gas flow
摘要
申请公布号	GB744066(A)	申请公布日期	1956.02.01
申请号	GB19530009312	申请日期	1953.04.07
申请人	NATIONAL RESEARCH DEVELOPMENT CORPORATION	发明人	LEAF GEORGE HECTOR CAMPBELL
分类号	F16L55/027	主分类号	F16L55/027
代理机构		代理人
主权项
地址

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