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发明名称
STAIRCASE SAFETY RAIL
摘要
申请公布号
GB9113898(D0)
申请公布日期
1991.08.14
申请号
GB19910013898
申请日期
1991.06.26
申请人
DEMPSTER, MARK
发明人
分类号
主分类号
代理机构
代理人
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