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经营范围
发明名称
Improvements in ladder apparatus for affording access to lofts and the like
摘要
申请公布号
GB415850(A)
申请公布日期
1934.09.06
申请号
GB19330012031
申请日期
1933.04.25
申请人
LEWIS GORTON AND SON LIMITED;LEWIS JAMES NURSE GORTON
发明人
分类号
E04F11/06
主分类号
E04F11/06
代理机构
代理人
主权项
地址
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