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发明名称
Rail and track
摘要
申请公布号
US4989782(A)
申请公布日期
1991.02.05
申请号
US19880291596
申请日期
1988.12.29
申请人
MCKIE, PETER S.
发明人
MCKIE, PETER S.
分类号
E01B23/00;E01B23/04
主分类号
E01B23/00
代理机构
代理人
主权项
地址
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