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经营范围
发明名称
An improved spectacles frame
摘要
申请公布号
GB502741(A)
申请公布日期
1939.03.23
申请号
GB19370025846
申请日期
1937.09.23
申请人
IFOR GETHIN WILLIAMS
发明人
分类号
G02C7/16
主分类号
G02C7/16
代理机构
代理人
主权项
地址
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