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发明名称
Process and apparatus for producing abrasive material
摘要
申请公布号
US2523454(A)
申请公布日期
1950.09.26
申请号
US19460670004
申请日期
1946.05.15
申请人
STEWART ORALD S
发明人
STEWART ORALD S.
分类号
B22F9/08
主分类号
B22F9/08
代理机构
代理人
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