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经营范围
发明名称
Mining equipment
摘要
申请公布号
GB2074633(A)
申请公布日期
1981.11.04
申请号
GB19810012358
申请日期
1981.04.21
申请人
PITCRAFT SUMMIT LTD
发明人
分类号
E21C35/00;E21C35/12;(IPC1-7):E21C35/12
主分类号
E21C35/00
代理机构
代理人
主权项
地址
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