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发明名称
Impression tray
摘要
申请公布号
US2117666(A)
申请公布日期
1938.05.17
申请号
US19370131914
申请日期
1937.03.19
申请人
HUGHES RAYMOND L
发明人
HUGHES RAYMOND L.
分类号
A61C9/00
主分类号
A61C9/00
代理机构
代理人
主权项
地址
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