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发明名称
PHOTOGRAPHIC EXPOSURE CONTROL SYSTEMS
摘要
申请公布号
GB1313543(A)
申请公布日期
1973.04.11
申请号
GB19700035603
申请日期
1970.07.22
申请人
POLAROID CORPORATION
发明人
分类号
G03B7/087;G03B7/16;G03B9/70;G03B15/04;(IPC1-7):G03B15/04
主分类号
G03B7/087
代理机构
代理人
主权项
地址
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