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发明名称
Vorrichtung zur Einsparung von Telefongebühren
摘要
申请公布号
DE29808183(U1)
申请公布日期
1998.07.16
申请号
DE19982008183U
申请日期
1998.05.06
申请人
PAULS, WERNER, DR., 24376 KAPPELN, DE
发明人
分类号
H04M15/28;(IPC1-7):H04M1/00;H04M1/26
主分类号
H04M15/28
代理机构
代理人
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地址
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