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发明名称
LADDER MULTI-SPAN
摘要
申请公布号
GB9217940(D0)
申请公布日期
1992.10.07
申请号
GB19920017940
申请日期
1992.08.24
申请人
POPPLE MARK A.
发明人
分类号
E06C7/48
主分类号
E06C7/48
代理机构
代理人
主权项
地址
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