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发明名称
Teat dilator
摘要
申请公布号
US2368576(A)
申请公布日期
1945.01.30
申请号
US19420458271
申请日期
1942.09.14
申请人
SMITH BENJAMIN D
发明人
SMITH BENJAMIN D.
分类号
A61D1/02
主分类号
A61D1/02
代理机构
代理人
主权项
地址
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