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经营范围
发明名称
TRAVERSE A NIVEAU
摘要
申请公布号
CA894005(A)
申请公布日期
1972.02.29
申请号
CAD894005
申请日期
1969.10.06
申请人
WILFRID GAGNON
发明人
WILFRID GAGNON
分类号
E01C9/04
主分类号
E01C9/04
代理机构
代理人
主权项
地址
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