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经营范围
发明名称
Improvements in gem setting
摘要
申请公布号
GB520583(A)
申请公布日期
1940.04.29
申请号
GB19380030805
申请日期
1938.10.25
申请人
BAKER & COMPANY
发明人
分类号
A44C17/04
主分类号
A44C17/04
代理机构
代理人
主权项
地址
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