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发明名称
SCHALTUNGSANORDNUNG ZUM UNTERDRUECKEN EINGEKOPPELTER, FREMDER NF-SIGNALE IN FERNSPRECHAPPARATEN
摘要
申请公布号
DD301175(A7)
申请公布日期
1992.10.15
申请号
DD19880320548
申请日期
1988.10.06
申请人
VEB FERNMELDEWERK NEUSTADT-GLEWE
发明人
KAMMHOLZ HELMUT;GOEPPE KARL-HEINZ
分类号
H04M;(IPC1-7):H04M/
主分类号
H04M
代理机构
代理人
主权项
地址
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