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经营范围
发明名称
Improvements in ladders
摘要
申请公布号
GB881142(A)
申请公布日期
1961.11.01
申请号
GB19580009194
申请日期
1958.03.21
申请人
HIDE & CLEMENTS LIMITED
发明人
HIDE REGINALD FRANCIS
分类号
E06C1/32
主分类号
E06C1/32
代理机构
代理人
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