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发明名称
Photographic exposure control circuit
摘要
申请公布号
US2666858(A)
申请公布日期
1954.01.19
申请号
US19510230159
申请日期
1951.06.06
申请人
THE FOTOPAK CORP.
发明人
LEVINE BERNARD
分类号
G03B27/80;H03K17/288
主分类号
G03B27/80
代理机构
代理人
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地址
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