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发明名称
OBTURADOR DE SISTEMA BILMELAR PARACAMARAS FOTOGRAFICAS.
摘要
申请公布号
ES341844(A1)
申请公布日期
1968.07.01
申请号
ES19440003418
申请日期
1967.06.15
申请人
ERNST & WILHELM BETRAM
发明人
分类号
G03B7/083;(IPC1-7):G03B/
主分类号
G03B7/083
代理机构
代理人
主权项
地址
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