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经营范围
发明名称
Retaining Wall Block
摘要
申请公布号
CA2101284(A1)
申请公布日期
1995.01.27
申请号
CA19932101284
申请日期
1993.07.26
申请人
DUECK, VERNON J.
发明人
DUECK, VERNON J.
分类号
E02D29/02;E04B2/02;E04C1/39;(IPC1-7):E04C1/00
主分类号
E02D29/02
代理机构
代理人
主权项
地址
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