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发明名称
Objective
摘要
申请公布号
US1897896(A)
申请公布日期
1933.02.14
申请号
US19310537016
申请日期
1931.05.13
申请人
EASTMAN KODAK COMPANY
发明人
FREDERICK CHARLES W.;EICHELBERGER WILLIAM S.
分类号
G02B13/02
主分类号
G02B13/02
代理机构
代理人
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