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发明名称
Spectacles
摘要
申请公布号
US2166110(A)
申请公布日期
1939.07.18
申请号
US19380209265
申请日期
1938.05.21
申请人
BALDANZA NICHOLAS T
发明人
BALDANZA NICHOLAS T.
分类号
G02C5/00
主分类号
G02C5/00
代理机构
代理人
主权项
地址
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