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经营范围
发明名称
ROOF CONSTRUCTIONS
摘要
A roof construction comprises interconnected corrugated panels and an insulated outer roofing, and the channels formed between the outer roofing the the corrugations of the panels are connected to a ventilating system for ventilating the roof.
申请公布号
US3633659(A)
申请公布日期
1972.01.11
申请号
USD3633659
申请日期
1970.01.16
申请人
SISENCA SA.
发明人
JARL-ERIK OHLSSON
分类号
E04D13/17;(IPC1-7):F24F7/06
主分类号
E04D13/17
代理机构
代理人
主权项
地址
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