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发明名称
Magnettongeraet zur Vertonung und Steuerung von Diapositiv-Programmen
摘要
申请公布号
DE1914020(A1)
申请公布日期
1970.10.01
申请号
DE19691914020
申请日期
1969.03.19
申请人
GRAETZ KG
发明人
APITZ,SIEGFRIED
分类号
G03B31/06
主分类号
G03B31/06
代理机构
代理人
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地址
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