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发明名称
RAILROAD GRADE CROSSING ASSEMBLY
摘要
申请公布号
EP1660726(A4)
申请公布日期
2009.12.30
申请号
EP20040778675
申请日期
2004.07.20
申请人
BURKE, THOMAS J.
发明人
BURKE, THOMAS J.
分类号
E01F13/00;E05D15/06;E05F15/20;G06F;G08B13/08
主分类号
E01F13/00
代理机构
代理人
主权项
地址
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