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发明名称
Mouth prop
摘要
申请公布号
US2694397(A)
申请公布日期
1954.11.16
申请号
US19520309620
申请日期
1952.09.15
申请人
HERMS FREDERICK W
发明人
HERMS FREDERICK W.
分类号
A61B1/24
主分类号
A61B1/24
代理机构
代理人
主权项
地址
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