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发明名称
STEP LADDER
摘要
申请公布号
GB2175948(B)
申请公布日期
1988.10.19
申请号
GB19850014066
申请日期
1985.06.04
申请人
BRIAN * WESTON
发明人
BRIAN * WESTON
分类号
E06C1/393;(IPC1-7):E06C1/39;E06C1/24;E06C7/16
主分类号
E06C1/393
代理机构
代理人
主权项
地址
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