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发明名称
On-off wheel for step-ladders
摘要
申请公布号
GB2026070(A)
申请公布日期
1980.01.30
申请号
GB19780026799
申请日期
1978.06.13
申请人
KELLCHEST LTD
发明人
分类号
E06C1/397;(IPC1-7):E06C5/32;B60B33/06
主分类号
E06C1/397
代理机构
代理人
主权项
地址
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