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发明名称
AN IMPROVED LADDER IRON
摘要
申请公布号
GB9219297(D0)
申请公布日期
1992.10.28
申请号
GB19920019297
申请日期
1992.09.11
申请人
THOMPSON JOSEPH
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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