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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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