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发明名称
Split endpiece spectacle construction
摘要
申请公布号
US2521632(A)
申请公布日期
1950.09.05
申请号
US19460656335
申请日期
1946.03.22
申请人
BAY STATE OPTICAL COMPANY
发明人
HANSEN JULIUS E.
分类号
G02C1/08
主分类号
G02C1/08
代理机构
代理人
主权项
地址
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