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发明名称
FOTOELEKTRISCHER BELICHTUNGSMESSER.
摘要
申请公布号
DE1644715(U)
申请公布日期
1952.10.02
申请号
DE195200A2189U
申请日期
1952.01.07
申请人
AGFA CAMERA WERK
发明人
分类号
主分类号
代理机构
代理人
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