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发明名称
Dental chair headrest cover
摘要
申请公布号
US1854068(A)
申请公布日期
1932.04.12
申请号
US19290396859
申请日期
1929.10.02
申请人
ROTNER IRVING E
发明人
ROTNER IRVING E.
分类号
A61G15/12
主分类号
A61G15/12
代理机构
代理人
主权项
地址
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