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发明名称
Verfahren und Vorrichtung zum Kuehlen von Zahnbohrern mittels eines Kuehlmittels auf Temperaturen, die ein schmerzloses Zahnbohren ermoeglichen
摘要
申请公布号
DE640017(C)
申请公布日期
1936.12.24
申请号
DE1935R092241D
申请日期
1935.01.01
申请人
DR. WALTHER ROOS
发明人
分类号
A61C1/05
主分类号
A61C1/05
代理机构
代理人
主权项
地址
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