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经营范围
发明名称
SLANTED HANGING WINGS OF A BRIDGE HEAD
摘要
申请公布号
PL154654(B1)
申请公布日期
1991.09.30
申请号
PL19870264869
申请日期
1987.03.27
申请人
发明人
分类号
E01D;E01D1/00;E01D19/02;(IPC1-7):E01D19/02
主分类号
E01D
代理机构
代理人
主权项
地址
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