Improvements relating to electrical switch contacts,申请号GB19470003881-传众专利搜索

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发明名称	Improvements relating to electrical switch contacts
摘要
申请公布号	GB621247(A)	申请公布日期	1949.04.06
申请号	GB19470003881	申请日期	1947.02.10
申请人	FIRST INDUSTRIAL CORPORATION	发明人
分类号	H01H1/06	主分类号	H01H1/06
代理机构		代理人
主权项
地址

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