| 发明名称 |
Tide buster convertible stair |
| 摘要 |
A ladder system consists of a base and extension and a system for connection of the base to the extension for vertical height extension or horizontal lenght extension or for nesting the extension steps in the base for storage.
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| 申请公布号 |
US6962125(B1) |
申请公布日期 |
2005.11.08 |
| 申请号 |
US20050905652 |
申请日期 |
2005.01.14 |
| 申请人 |
WESLEY WILLIAM P |
发明人 |
WESLEY WILLIAM P. |
| 分类号 |
B63B17/00;B63B27/14;B63B29/20;(IPC1-7):B63B17/00 |
主分类号 |
B63B17/00 |
| 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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