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发明名称
Optical lens
摘要
申请公布号
US2347488(A)
申请公布日期
1944.04.25
申请号
US19430481898
申请日期
1943.04.05
申请人
LAWIOR JOHN H;EMIL DANZ
发明人
LAWIOR JOHN H.;DANZ EMIL
分类号
G02C7/04
主分类号
G02C7/04
代理机构
代理人
主权项
地址
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