| 发明名称 |
ADJUSTABLE CHRISTMAS TREE STAND |
| 摘要 |
The tree stand is collapsible for storage, and includes means to positively latch the tree shaft receptacle in adjusted positions of tilt, thereby minimizing the risk of accidental release of the receptacle and possible overturning of the assembly.
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| 申请公布号 |
US3661349(A) |
申请公布日期 |
1972.05.09 |
| 申请号 |
USD3661349 |
申请日期 |
1970.03.30 |
| 申请人 |
WOLVERINE INDUSTRIES INC. |
发明人 |
ROBERT W. DE VRIES |
| 分类号 |
A47G33/12;(IPC1-7):A47G33/12 |
主分类号 |
A47G33/12 |
| 代理机构 |
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代理人 |
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