Système d'accord à perméabilité variable,申请号FRD939880-传众专利搜索

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发明名称	Système d'accord à perméabilité variable
摘要
申请公布号	FR939880(A)	申请公布日期	1948.11.26
申请号	FRD939880	申请日期	1947.01.22
申请人	SOCIETE DES ETABLISSEMENTS BRUNET	发明人
分类号	H01F21/06;H03J3/24	主分类号	H01F21/06
代理机构		代理人
主权项
地址

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