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经营范围
发明名称
Koffersprechmaschine
摘要
申请公布号
DE577483(C)
申请公布日期
1933.05.31
申请号
DENDATV027200D
申请日期
申请人
HUGO VOIGT
发明人
分类号
G11B25/04
主分类号
G11B25/04
代理机构
代理人
主权项
地址
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