发明名称 Roof panel construction and method of making same
摘要 A roof panel construction includes a plurality of integral snow and ice gripping projections to help retain accumulated ice thereon and to guide the drainage of melted snow and ice therefrom during snow and ice melting ambient conditions. The projections are each convex in configuration to grip the frozen snow and ice and yet permit efficient drainage of the melted snow and ice thereover and therearound.
申请公布号 US6141917(A) 申请公布日期 2000.11.07
申请号 US19980010628 申请日期 1998.01.22
申请人 MUELLER, GEORGE B. 发明人 MUELLER, GEORGE B.
分类号 E04D3/40;E04D13/10;(IPC1-7):E04D13/10 主分类号 E04D3/40
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