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发明名称
CUTTER-BIT ASSEMBLIES
摘要
申请公布号
GB8724088(D0)
申请公布日期
1987.11.18
申请号
GB19870024088
申请日期
1987.10.14
申请人
GEWERKSCHAFT EISENHUTTE WESTFALIA GMBH
发明人
分类号
E21C35/197
主分类号
E21C35/197
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