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发明名称
PAVING STONE
摘要
申请公布号
US4052131(A)
申请公布日期
1977.10.04
申请号
US19760679855
申请日期
1976.04.23
申请人
LOWRIGKEIT, PAUL E.
发明人
LOWRIGKEIT, PAUL E.
分类号
E01C9/00;E02B3/14;(IPC1-7):E01C5/00
主分类号
E01C9/00
代理机构
代理人
主权项
地址
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