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发明名称
Sprechmaschine, insbesondere Walzensprechmaschine mit Elektromotorantrieb
摘要
申请公布号
DE580026(C)
申请公布日期
1933.07.05
申请号
DE1929SC89431D
申请日期
1929.02.23
申请人
TELEGRAPHIE-PATENT-SYNDIKAT G.M.B.H.
发明人
分类号
G11B25/02
主分类号
G11B25/02
代理机构
代理人
主权项
地址
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