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发明名称
A BACK-REST,CUSHION,SEAT OR MATRESS INCORPORATING VERTICALLY-ADJUSTABLE CONVEX SUPPORT
摘要
申请公布号
GB9303311(D0)
申请公布日期
1993.04.07
申请号
GB19930003311
申请日期
1993.02.18
申请人
PAXON JOHN B
发明人
分类号
主分类号
代理机构
代理人
主权项
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