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发明名称
Einrichtung zum Vergleichen von Helligkeitswerten mit Hilfe von zwei Photozellen
摘要
申请公布号
DE740593(C)
申请公布日期
1943.10.23
申请号
DE1936H149873D
申请日期
1936.12.11
申请人
DR. ROBERT HAVEMANN
发明人
HAVEMANN DR. ROBERT
分类号
G01J1/16
主分类号
G01J1/16
代理机构
代理人
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地址
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