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经营范围
发明名称
Prefabricated metal steps
摘要
申请公布号
GB2064615(A)
申请公布日期
1981.06.17
申请号
GB19800032491
申请日期
1980.10.08
申请人
ELLER T L
发明人
分类号
E04F11/025;(IPC1-7):E04F11/02
主分类号
E04F11/025
代理机构
代理人
主权项
地址
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