Improvements relating to semi-conductive compositions,申请号GB19540013503-传众专利搜索

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发明名称	Improvements relating to semi-conductive compositions
摘要
申请公布号	GB746566(A)	申请公布日期	1956.03.14
申请号	GB19540013503	申请日期	1954.05.10
申请人	GENERAL MOTORS CORPORATION	发明人
分类号	C04B35/478;H01B1/08;H01C7/00	主分类号	C04B35/478
代理机构		代理人
主权项
地址

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