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经营范围
发明名称
MINERAL CUTTING PICKS
摘要
申请公布号
GB1601470(A)
申请公布日期
1981.10.28
申请号
GB19770037112
申请日期
1978.05.23
申请人
WIMET LTD
发明人
分类号
E21C35/18;E21C35/183;(IPC1-7):E21C35/18
主分类号
E21C35/18
代理机构
代理人
主权项
地址
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