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发明名称
ELEKTROMAGNETISCHER TONABNEHMER FUER ELEKTRISCHE MUSIKWIEDERGABE.
摘要
申请公布号
DE1637481(U)
申请公布日期
1952.04.24
申请号
DE195000R1939U
申请日期
1950.10.31
申请人
CONRAD REITZIG;FRIEDRICH SCHMIDT
发明人
CONRAD REITZIG;FRIEDRICH SCHMIDT
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主分类号
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