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经营范围
发明名称
Coring device
摘要
申请公布号
US1844538(A)
申请公布日期
1932.02.09
申请号
US19300454698
申请日期
1930.05.22
申请人
BOYLE CHARLES H
发明人
BOYLE CHARLES H.
分类号
A23N4/18
主分类号
A23N4/18
代理机构
代理人
主权项
地址
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