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发明名称
Photocell-filter combination
摘要
申请公布号
US2594122(A)
申请公布日期
1952.04.22
申请号
US19490092336
申请日期
1949.05.10
申请人
RESEARCH CORPORATION
发明人
CASHMAN ROBERT J.
分类号
G02B5/20
主分类号
G02B5/20
代理机构
代理人
主权项
地址
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