Semiconductive resistance provided with metal contacts,申请号US19470727090-传众专利搜索

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发明名称	Semiconductive resistance provided with metal contacts
摘要
申请公布号	US2496346(A)	申请公布日期	1950.02.07
申请号	US19470727090	申请日期	1947.02.07
申请人	HARTFORD NATIONAL BANK AND TRUST COMPANY	发明人	HAAYMAN PIETER WILLEM;BRUINING HAJO
分类号	C04B37/02;H01C7/108	主分类号	C04B37/02
代理机构		代理人
主权项
地址

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