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发明名称
Sprechmaschine in Form eines geschlossen spielbaren Koffers oder Kastens
摘要
申请公布号
DE547470(C)
申请公布日期
1932.04.05
申请号
DED547470D
申请日期
1930.03.29
申请人
HEINZ DRESSEL
发明人
分类号
G11B25/04
主分类号
G11B25/04
代理机构
代理人
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