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发明名称
SYSTEM FOR ERECTING STRUCTURES,ESPECIALLY OF POWER ENGINEERING STRUCTURES ON ROOFS OF BUILDINGS HAVING LIMITED ASSEMBLY SPACE AREA
摘要
申请公布号
PL152485(B2)
申请公布日期
1990.12.31
申请号
PL19870267027
申请日期
1987.07.25
申请人
发明人
分类号
E04B;E04H;E04H12/34;H01Q;(IPC1-7):E04H12/34
主分类号
E04B
代理机构
代理人
主权项
地址
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