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发明名称
PROCESS AND APPARATUS FOR PRODUCING ABRASIVE MATERIAL
摘要
申请公布号
CA515836(A)
申请公布日期
1955.08.23
申请号
CAD515836
申请日期
申请人
ORALD S. STEWART
发明人
ORALD S. STEWART
分类号
主分类号
代理机构
代理人
主权项
地址
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