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发明名称
MINE EQUIPMENT
摘要
申请公布号
GB1579750(A)
申请公布日期
1980.11.26
申请号
GB19770022363
申请日期
1977.05.26
申请人
DRESSER EUROPE SA
发明人
分类号
B02C4/10;E21F13/00;(IPC1-7):B02C4/34
主分类号
B02C4/10
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