发明名称 Process for producing windsurfing boards
摘要 For producing windsurfing boards, a core of plastic having a high void fraction is incorporated in the hollow space enclosed by the wall of the outer shell and supports the latter. In order to produce a lightweight core of great strength, hollow bodies are introduced into the hollow space and the remaining voids are subsequently filled with a foam plastic.
申请公布号 DE3145045(A1) 申请公布日期 1983.05.19
申请号 DE19813145045 申请日期 1981.11.12
申请人 MARKER,HANNES 发明人 MARKER,HANNES;HEGELE,FRANZ;JANICH,KARL,ING.
分类号 B29C44/18;B63B35/79;(IPC1-7):B29D27/00;B29D31/00 主分类号 B29C44/18
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