Improvements in electromagnetic relays,申请号GB19550030300-传众专利搜索

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发明名称	Improvements in electromagnetic relays
摘要
申请公布号	GB775421(A)	申请公布日期	1957.05.22
申请号	GB19550030300	申请日期	1955.10.24
申请人	WESTINGHOUSE AIR BRAKE COMPANY	发明人
分类号	H01H50/56;H01H50/64	主分类号	H01H50/56
代理机构		代理人
主权项
地址

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