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发明名称
摘要
申请公布号
DE2720588(C2)
申请公布日期
1983.03.17
申请号
DE19772720588
申请日期
1977.05.07
申请人
TELEFONBAU UND NORMALZEIT GMBH, 6000 FRANKFURT, DE
发明人
RESCH, WOLFGANG, 6096 RAUNHEIM, DE
分类号
H04Q3/42;(IPC1-7):H04M7/00;H04Q1/50
主分类号
H04Q3/42
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