Carte perforée pour téléphone automatique,申请号FRD940738-传众专利搜索

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发明名称	Carte perforée pour téléphone automatique
摘要
申请公布号	FR940738(A)	申请公布日期	1948.12.21
申请号	FRD940738	申请日期	1947.02.03
申请人		发明人	BERTRAND ROLAND-EUGENE
分类号	H04M1/278	主分类号	H04M1/278
代理机构		代理人
主权项
地址

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