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发明名称
Diabild- und Filmprojektionstruhe
摘要
申请公布号
DE1929151(A1)
申请公布日期
1970.12.17
申请号
DE19691929151
申请日期
1969.06.09
申请人
BECKER,RUDOLF
发明人
BECKER,RUDOLF
分类号
G03B31/02
主分类号
G03B31/02
代理机构
代理人
主权项
地址
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