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发明名称
Composite shingle
摘要
Disclosed is a composite roofing shingle. The preferred roofing shingle includes a mixture of a polymer and a filler. The preferred blend includes between about 35-65% polyethylene and 50-70% crushed limestone filler.
申请公布号
US2005086907(A1)
申请公布日期
2005.04.28
申请号
US20040988865
申请日期
2004.11.15
申请人
JOLITZ RANDAL J.
发明人
JOLITZ RANDAL J.
分类号
E04D1/20;E04D1/22;E04D1/26;(IPC1-7):E04D1/00
主分类号
E04D1/20
代理机构
代理人
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