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发明名称
Perfectionnements aux systèmes téléphoniques
摘要
申请公布号
FR1532156(A)
申请公布日期
1968.07.05
申请号
FR19670115512
申请日期
1967.07.25
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
METZ MANFRED;NIEDERGESASS DIETER
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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