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发明名称
Improvements in or relating to haulage gear mechanism for shortwall coal-cutting machines
摘要
申请公布号
GB584287(A)
申请公布日期
1947.01.10
申请号
GB19440016227
申请日期
1944.08.26
申请人
ALEXANDER ANDERSON;ANDERSON, BOYES & COMPANY LIMITED
发明人
分类号
E21C29/10
主分类号
E21C29/10
代理机构
代理人
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