发明名称 IMPACT RESISTANT SURFBOARD
摘要 Waterboards such as surfboards are described that are formed of a combination of a resilient foam core with an outer shell of polycarbonate or polyurethane. Such waterboards may further include fibrous material bonded to or embedded in the outer shell for additional strength.
申请公布号 US2008032575(A1) 申请公布日期 2008.02.07
申请号 US20060462753 申请日期 2006.08.07
申请人 WYRSTA MICHAEL D;JOHNSON DAVID S 发明人 WYRSTA MICHAEL D.;JOHNSON DAVID S.
分类号 A63C5/03 主分类号 A63C5/03
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