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发明名称
Device for assisting parturition of animals
摘要
申请公布号
US2522508(A)
申请公布日期
1950.09.19
申请号
US19490097885
申请日期
1949.06.08
申请人
FRANK BERNARD N
发明人
FRANK BERNARD N.
分类号
A61D1/08
主分类号
A61D1/08
代理机构
代理人
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