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发明名称
Eyeglass frame construction
摘要
申请公布号
US2510398(A)
申请公布日期
1950.06.06
申请号
US19470722681
申请日期
1947.01.17
申请人
BAY STATE OPTICAL COMPANY
发明人
HANSEN JULIUS E.
分类号
G02C5/14
主分类号
G02C5/14
代理机构
代理人
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