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发明名称
Ophthalmic mounting with concealed lens-carrying and noseguard-carrying arms
摘要
申请公布号
US2457938(A)
申请公布日期
1949.01.04
申请号
US19460656548
申请日期
1946.03.23
申请人
STEVENS FREDERICK A
发明人
STEVENS FREDERICK A.
分类号
G02C5/02
主分类号
G02C5/02
代理机构
代理人
主权项
地址
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