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经营范围
发明名称
TUNNELLING MACHINES
摘要
申请公布号
CA894108(A)
申请公布日期
1972.02.29
申请号
CAD894108
申请日期
申请人
EDMUND NUTTALL, SONS AND CO. (LONDON) LIMITED
发明人
ALLAN J. COX;ROY P. BURGESS
分类号
主分类号
代理机构
代理人
主权项
地址
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