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经营范围
发明名称
Improvements in or relating to mine shaft conveyances
摘要
申请公布号
GB1124798(A)
申请公布日期
1968.08.21
申请号
GB19650050241
申请日期
1965.11.26
申请人
ROBERT WILLIAM WORRALL
发明人
分类号
B66B7/04
主分类号
B66B7/04
代理机构
代理人
主权项
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