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发明名称
EXTENDING FIRE-ESCAPE LADDER
摘要
申请公布号
GB8515333(D0)
申请公布日期
1985.07.17
申请号
GB19850015333
申请日期
1985.06.18
申请人
KELLY, T F
发明人
分类号
E06C9/14
主分类号
E06C9/14
代理机构
代理人
主权项
地址
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