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经营范围
发明名称
Saliva ejector
摘要
申请公布号
US2742701(A)
申请公布日期
1956.04.24
申请号
US19540450669
申请日期
1954.08.18
申请人
BERGER DANIEL S
发明人
BERGER DANIEL S.
分类号
A61C17/08
主分类号
A61C17/08
代理机构
代理人
主权项
地址
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