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经营范围
发明名称
DENTAL TEACHING DEVICE
摘要
申请公布号
GB1540243(A)
申请公布日期
1979.02.07
申请号
GB19760025725
申请日期
1976.06.21
申请人
KALTENBACH & VOIGT
发明人
分类号
G09B23/28
主分类号
G09B23/28
代理机构
代理人
主权项
地址
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