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发明名称
Optical screen
摘要
申请公布号
US3057256(A)
申请公布日期
1962.10.09
申请号
US19560590121
申请日期
1956.06.08
申请人
ERBAN RICHARD T
发明人
ERBAN RICHARD T.
分类号
G02B5/124
主分类号
G02B5/124
代理机构
代理人
主权项
地址
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