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发明名称
Obstetrical table
摘要
申请公布号
US1778698(A)
申请公布日期
1930.10.14
申请号
US19280311651
申请日期
1928.10.10
申请人
FRANK S. BETZ COMPANY
发明人
WALTER JOSEPH
分类号
A61G13/00
主分类号
A61G13/00
代理机构
代理人
主权项
地址
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