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发明名称
WERKWIJZE EN INRICHTING VOOR HET DOORSCHAKELEN VAN DATAEENHEDEN.
摘要
申请公布号
NL9000780(A)
申请公布日期
1991.11.01
申请号
NL19900000780
申请日期
1990.04.03
申请人
KONINKLIJKE PTT NEDERLAND N.V. TE GRONINGEN.
发明人
分类号
H04Q11/04;H04L12/56
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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