| 发明名称 |
Kneeboard |
| 摘要 |
A kneeboard formed of upper and lower polymeric shells about a core material and having a internal, generally vertical stiffener to impart strength to the kneeboard and to provide a low profile strengthened kneeboard.
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| 申请公布号 |
US6305305(B1) |
申请公布日期 |
2001.10.23 |
| 申请号 |
US20000632904 |
申请日期 |
2000.08.04 |
| 申请人 |
EARTH & OCEAN SPORTS, INC. |
发明人 |
JOHNSON CHRIS L. |
| 分类号 |
B63B35/79;(IPC1-7):B63B35/79 |
主分类号 |
B63B35/79 |
| 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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