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发明名称
DISPOSITIF ET PROCEDE PERMETTANT DE PROJETER OPTIQUEMENT UNE CONFIGURATION D'OUVERTURES PRATIQUEMENT CIRCULAIRES SUR UNE COUCHE PHOTOSENSIBLE
摘要
申请公布号
BE768157(A1)
申请公布日期
1971.12.06
申请号
BE19710768157
申请日期
1971.06.04
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN, EMMASINGEL 6, EINDHOVEN, (PAYS-BAS),
发明人
分类号
H01J9/227;(IPC1-7):G03B/
主分类号
H01J9/227
代理机构
代理人
主权项
地址
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