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发明名称
Free grain polishing process and apparatus
摘要
申请公布号
US3013365(A)
申请公布日期
1961.12.19
申请号
US19580724087
申请日期
1958.03.26
申请人
THE MECHANICAL FINISHING COMPANY, INC.
发明人
HARPER JOHN FORD
分类号
B24B31/02
主分类号
B24B31/02
代理机构
代理人
主权项
地址
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