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发明名称
Improvements in mineral mining machines
摘要
申请公布号
GB1040566(A)
申请公布日期
1966.09.01
申请号
GB19610040684
申请日期
1961.11.14
申请人
COAL INDUSTRY (PATENTS) LIMITED
发明人
SHUTTLEWORTH PETER
分类号
E21D9/10
主分类号
E21D9/10
代理机构
代理人
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地址
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