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发明名称
FERNSPRECH-HANDAPPARAT
摘要
申请公布号
DE2440841(B2)
申请公布日期
1977.12.29
申请号
DE19742440841
申请日期
1974.08.26
申请人
发明人
分类号
H04M1/03;(IPC1-7):H04M1/03
主分类号
H04M1/03
代理机构
代理人
主权项
地址
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