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发明名称
PAVEMENT RAMP
摘要
申请公布号
GB2223256(B)
申请公布日期
1993.01.20
申请号
GB19890022155
申请日期
1989.10.02
申请人
FRANK DAVID EMBRY * WENMAN
发明人
FRANK DAVID EMBRY * WENMAN
分类号
A61G3/06;E01C11/22
主分类号
A61G3/06
代理机构
代理人
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