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发明名称
ZUSATZSYSTEM FUER EINE FERNSPRECHANLAGE
摘要
申请公布号
ATA906182(A)
申请公布日期
1992.05.15
申请号
AT19820009061
申请日期
1982.12.02
申请人
BASE TEN SYSTEMS, INC.
发明人
分类号
H04M11/06;G08B25/08;H04M11/00;H04M11/04;(IPC1-7):H04M11/04
主分类号
H04M11/06
代理机构
代理人
主权项
地址
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