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发明名称
Preflash pseudofocus/exposure control system
摘要
申请公布号
US4894678(A)
申请公布日期
1990.01.16
申请号
US19890345959
申请日期
1989.05.01
申请人
POLAROID CORPORATION
发明人
FARRINGTON, DAVID L.;STALLER, NORMAN D.;WHITESIDE, GEORGE D.
分类号
G03B7/08;G03B7/16;G03B15/05;H05B41/32
主分类号
G03B7/08
代理机构
代理人
主权项
地址
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