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经营范围
发明名称
EXPOSURE CONTROL APPARATUS
摘要
申请公布号
US3557678(A)
申请公布日期
1971.01.26
申请号
USD3557678
申请日期
1968.08.01
申请人
POLAROID CORP.
发明人
ALFRED H. BELLOWS
分类号
G03B7/083;(IPC1-7):G03B9/16
主分类号
G03B7/083
代理机构
代理人
主权项
地址
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