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经营范围
发明名称
STEERING A MINING MACHINE
摘要
申请公布号
GB2254869(A)
申请公布日期
1992.10.21
申请号
GB19920008170
申请日期
1992.04.13
申请人
* COAL INDUSTRY
发明人
BRUCE NORBERT * ROTH
分类号
E21C35/24
主分类号
E21C35/24
代理机构
代理人
主权项
地址
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