专利名称：Solar heat collector发明人：Lee M. Kelley申请号：US06/249788申请日：19810401公开号：US04325360A公开日：19820420
摘要：A solar collector formed of lightweight concrete wherein zones of higher andlower density concrete are used to form the integral unitary structure. The collector issuspended from an absorber pipe by support means included in the high density zonesof concrete.
申请人：KELLEY; LEE M.
代理人：Joseph H. Roediger
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