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发明名称
Wheelchair access
摘要
申请公布号
GB9721450(D0)
申请公布日期
1997.12.10
申请号
GB19970021450
申请日期
1997.10.10
申请人
RICHARDS, STUART C
发明人
分类号
E01F13/00;E01F13/06;E05B35/00;E05B65/00;E06B11/02
主分类号
E01F13/00
代理机构
代理人
主权项
地址
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