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经营范围
发明名称
Convertible Extension/Step Ladder
摘要
申请公布号
GB2064632(A)
申请公布日期
1981.06.17
申请号
GB19800038609
申请日期
1980.12.02
申请人
ABRU ALUMINIUM LTD
发明人
分类号
E06C1/32;(IPC1-7):E06C1/32
主分类号
E06C1/32
代理机构
代理人
主权项
地址
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