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经营范围
发明名称
Improvements in or relating to settings for gems
摘要
申请公布号
GB538260(A)
申请公布日期
1941.07.25
申请号
GB19400009938
申请日期
1940.06.06
申请人
BAKER & COMPANY
发明人
分类号
A44C17/02
主分类号
A44C17/02
代理机构
代理人
主权项
地址
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