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经营范围
发明名称
CARRIERS FOR LOOPED CABLES IN MINING INSTALLATIONS
摘要
申请公布号
CA927366(A)
申请公布日期
1973.05.29
申请号
CA19690040683
申请日期
1969.01.21
申请人
PERARD ENGINEERING LTD
发明人
HUBBARD T
分类号
E21C35/00;E21C35/04;E21F17/04
主分类号
E21C35/00
代理机构
代理人
主权项
地址
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