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经营范围
发明名称
Improvements in or relating to ladders
摘要
申请公布号
GB0003309(D0)
申请公布日期
2000.04.05
申请号
GB20000003309
申请日期
2000.02.15
申请人
ADSHEAD, HAROLD F
发明人
分类号
E06C7/48
主分类号
E06C7/48
代理机构
代理人
主权项
地址
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