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发明名称
BUILT-UP RESCUE LADDER
摘要
申请公布号
PL267095(A1)
申请公布日期
1989.02.06
申请号
PL19870267095
申请日期
1987.07.29
申请人
发明人
分类号
A62B;E06C1/383;(IPC1-7):A62B/
主分类号
A62B
代理机构
代理人
主权项
地址
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