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发明名称
Automatically controlled photoelectric iris
摘要
申请公布号
US2655848(A)
申请公布日期
1953.10.20
申请号
US19500143211
申请日期
1950.02.09
申请人
GRAY JR HOWARD A
发明人
JR. HOWARD A. GRAY,
分类号
G03B7/085
主分类号
G03B7/085
代理机构
代理人
主权项
地址
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