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发明名称
Geraet zum indirekten Betrachten von Transparenten
摘要
申请公布号
DE953839(C)
申请公布日期
1956.12.06
申请号
DE1955A022194
申请日期
1955.03.04
申请人
ANSTALT RISO
发明人
分类号
G02B27/02
主分类号
G02B27/02
代理机构
代理人
主权项
地址
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