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发明名称
BETRACHTUNGSGERAET FUER DIAPOSITIVE.
摘要
申请公布号
DE1716537(U)
申请公布日期
1956.02.09
申请号
DE195500N6036U
申请日期
1955.11.29
申请人
FA. CARL NEITHOLD
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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