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经营范围
发明名称
Improvements in or connected with cutting machines for use in mining coal and other minerals
摘要
申请公布号
GB506777(A)
申请公布日期
1939.06.05
申请号
GB19380002451
申请日期
1938.01.26
申请人
MAVOR AND COULSON LIMITED;ALEXANDER MCGILP MUNRO
发明人
分类号
E21C29/10
主分类号
E21C29/10
代理机构
代理人
主权项
地址
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