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发明名称
Zusatzgeraet fuer Tonfilmwiedergabegeraete
摘要
申请公布号
DE661706(C)
申请公布日期
1938.06.24
申请号
DE1934Z021696D
申请日期
1934.04.20
申请人
ZEISS IKON AKT.-GES.
发明人
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
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