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发明名称
OPTISCHER REFLEXPANTOGRAPH.
摘要
申请公布号
DE1717005(U)
申请公布日期
1956.02.16
申请号
DE195500B2394U
申请日期
1955.06.23
申请人
WILHELM BECKER
发明人
WILHELM BECKER
分类号
主分类号
代理机构
代理人
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