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发明名称
Improvements relating to dental equipment
摘要
申请公布号
GB339533(A)
申请公布日期
1930.12.11
申请号
GB19300002165
申请日期
1930.01.22
申请人
HERMANN HARDMEIER
发明人
分类号
A61C17/00
主分类号
A61C17/00
代理机构
代理人
主权项
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