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发明名称
摘要
申请公布号
NL6900409(A)
申请公布日期
1970.07.14
申请号
NL19690000409
申请日期
1969.01.10
申请人
发明人
分类号
A61C19/04;(IPC1-7):A61B5/10
主分类号
A61C19/04
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