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发明名称
EXCAVATION SYSTEM AND METHOD
摘要
申请公布号
CA2414334(A1)
申请公布日期
2004.06.13
申请号
CA20022414334
申请日期
2002.12.13
申请人
ENBRIDGE TECHNOLOGY INC.
发明人
MCGIVERY, JOHN W.
分类号
E01C23/09;(IPC1-7):E01C23/06
主分类号
E01C23/09
代理机构
代理人
主权项
地址
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