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经营范围
发明名称
Improvements in and relating to spectacles
摘要
申请公布号
GB665144(A)
申请公布日期
1952.01.16
申请号
GB19490007425
申请日期
1949.03.18
申请人
WALTER JAMESON LIMITED;WALTER JAMESON
发明人
分类号
G02C5/14;G02C5/18
主分类号
G02C5/14
代理机构
代理人
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地址
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