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经营范围
发明名称
Improvements in spectacles
摘要
申请公布号
GB366740(A)
申请公布日期
1932.02.11
申请号
GB19310005269
申请日期
1931.02.19
申请人
WILLIAM DAVID EGLINTON
发明人
分类号
G02C11/02
主分类号
G02C11/02
代理机构
代理人
主权项
地址
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