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发明名称
Raising and lowering device for extending ladders
摘要
申请公布号
GB2261249(B)
申请公布日期
1995.07.26
申请号
GB19910023592
申请日期
1991.11.06
申请人
FREDERICK HAROLD * BURMAN
发明人
FREDERICK HAROLD * BURMAN
分类号
E06C1/12;(IPC1-7):E06C7/02
主分类号
E06C1/12
代理机构
代理人
主权项
地址
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