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经营范围
发明名称
Spectacle hinge construction having an expandable anchor
摘要
申请公布号
US3403958(A)
申请公布日期
1968.10.01
申请号
US19650450905
申请日期
1965.04.26
申请人
HUDSON OPTICAL CORPORATION
发明人
GROSS ROBERT
分类号
G02C5/22
主分类号
G02C5/22
代理机构
代理人
主权项
地址
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