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发明名称
ABRASIVE
摘要
申请公布号
CA343101(A)
申请公布日期
1934.07.17
申请号
CAD343101
申请日期
申请人
EDMUND S. MERRIAM
发明人
EDMUND S. MERRIAM
分类号
主分类号
代理机构
代理人
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