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经营范围
发明名称
Coring machine
摘要
申请公布号
US2359881(A)
申请公布日期
1944.10.10
申请号
US19410401483
申请日期
1941.07.08
申请人
YANKFRANK, INC.
发明人
SERR WILLIAM F.
分类号
A22C11/00
主分类号
A22C11/00
代理机构
代理人
主权项
地址
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