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发明名称
Rufmeldegerät für ein Telefon
摘要
申请公布号
DE19749730(C2)
申请公布日期
2002.02.14
申请号
DE19971049730
申请日期
1997.11.11
申请人
BORDFELD, HUBERTUS
发明人
BORDFELD, HUBERTUS
分类号
G04B25/04;G04B47/00;G08B5/22;H04M1/725;H04M19/04;H04W88/04;(IPC1-7):H04M1/00;H04M1/64
主分类号
G04B25/04
代理机构
代理人
主权项
地址
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