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发明名称
Vorrichtung zum Registrieren von Telephongespraechen
摘要
申请公布号
DE613354(C)
申请公布日期
1935.05.17
申请号
DE1932I043506D
申请日期
1932.01.19
申请人
SALLY ISENBERG;SALLY ISENBERG
发明人
分类号
H04M1/65
主分类号
H04M1/65
代理机构
代理人
主权项
地址
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