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发明名称
Spectacles
摘要
申请公布号
US1934052(A)
申请公布日期
1933.11.07
申请号
US19320588703
申请日期
1932.01.25
申请人
SHURON OPTICAL COMPANY, INC.
发明人
FORD GEORGE H.
分类号
G02C5/02
主分类号
G02C5/02
代理机构
代理人
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