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发明名称
DISPOSITIF SIMPLE ET PORTABLE D'ECHELLES, D'ESCABEAUX ET D'ECHELLES DE COUPEE A MARCHES HORIZONTALES EN TOUTES POSITIONS
摘要
申请公布号
FR2635817(B1)
申请公布日期
1992.07.31
申请号
FR19880011237
申请日期
1988.08.23
申请人
DAVID ROBERT
发明人
分类号
E06C1/387;(IPC1-7):E06C1/387;E06C1/38
主分类号
E06C1/387
代理机构
代理人
主权项
地址
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