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发明名称
Disk mill
摘要
申请公布号
US2255071(A)
申请公布日期
1941.09.09
申请号
US19390271786
申请日期
1939.05.04
申请人
MARCO COMPANY, INC.
发明人
MARCO JOHN
分类号
B02C7/06;B02C7/08
主分类号
B02C7/06
代理机构
代理人
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