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经营范围
发明名称
HINGES FOR SPECTACLE FRAMES AND THE COMBINATION
摘要
申请公布号
US3489490(A)
申请公布日期
1970.01.13
申请号
USD3489490
申请日期
1966.12.08
申请人
AMERICAN OPTICAL CORP.
发明人
CHARLES W. SEAVER
分类号
G02C5/22;(IPC1-7):G02C5/22
主分类号
G02C5/22
代理机构
代理人
主权项
地址
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