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经营范围
发明名称
ABRASIVE ARTICLE
摘要
申请公布号
CA339043(A)
申请公布日期
1934.01.30
申请号
CAD339043
申请日期
申请人
THE CARBORUNDUM COMPANY
发明人
OSBORNE LEBARON MAHLMAN;RAYMOND CALVIN BENNER
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