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发明名称
Method and means of disintegrating metal into abrasive material
摘要
申请公布号
US2330038(A)
申请公布日期
1943.09.21
申请号
US19400361158
申请日期
1940.10.14
申请人
ERVIN JOHN F
发明人
ERVIN JOHN F.
分类号
B22F9/08
主分类号
B22F9/08
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代理人
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