Direct current electric switching contacts,申请号US19530342026-传众专利搜索

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发明名称	Direct current electric switching contacts
摘要
申请公布号	US2770700(A)	申请公布日期	1956.11.13
申请号	US19530342026	申请日期	1953.03.12
申请人	STACKPOLE CARBON COMPANY	发明人	HOLM RAGNAR;HOLM ELSE M. K.
分类号	H01H1/04	主分类号	H01H1/04
代理机构		代理人
主权项
地址

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