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发明名称
DIAMOND DRILL BIT
摘要
申请公布号
CA331392(A)
申请公布日期
1933.04.04
申请号
CAD331392
申请日期
申请人
JOSEPH M. GIBEAU
发明人
JOSEPH M. GIBEAU
分类号
主分类号
代理机构
代理人
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地址
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