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发明名称
Spectacles having adjustable bridge support
摘要
申请公布号
US2986971(A)
申请公布日期
1961.06.06
申请号
US19560630522
申请日期
1956.12.26
申请人
JENT HERMAN C
发明人
JENT HERMAN C.
分类号
G02C5/12
主分类号
G02C5/12
代理机构
代理人
主权项
地址
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