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发明名称
Metal covered solar heat ducting roof panel - has ducts formed between cover and superimposed metal panel, without pipes
摘要
申请公布号
DE3040844(A1)
申请公布日期
1982.06.03
申请号
DE19803040844
申请日期
1980.10.30
申请人
KIRCHEIS,KURT
发明人
KIRCHEIS,KURT
分类号
E04D3/35;E04D13/18;F24J2/04;F24J2/20;(IPC1-7):04D13/00;24J3/02
主分类号
E04D3/35
代理机构
代理人
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地址
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