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发明名称
Core-cutting machine
摘要
申请公布号
US2521385(A)
申请公布日期
1950.09.05
申请号
US19460680299
申请日期
1946.06.28
申请人
KEYSTONE ENGINEERING COMPANY
发明人
MARION ALEXANDER G.
分类号
B26D3/16
主分类号
B26D3/16
代理机构
代理人
主权项
地址
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