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发明名称
FIRE ESCAPE LADDER
摘要
申请公布号
US3547226(A)
申请公布日期
1970.12.15
申请号
USD3547226
申请日期
1969.08.22
申请人
EMIL LOEFFEL
发明人
EMIL LOEFFEL
分类号
E06C1/56;(IPC1-7):E06C1/38
主分类号
E06C1/56
代理机构
代理人
主权项
地址
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