| 发明名称 |
Double walled thermal protective coverings |
| 摘要 |
Thermal protective coverings for plants are provided by a double walled insulative device closable at the top and adapted to fit about the plant wherein the insulative space within the walls is filled with water or water and air.
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| 申请公布号 |
US4267665(A) |
申请公布日期 |
1981.05.19 |
| 申请号 |
US19780968745 |
申请日期 |
1978.12.13 |
| 申请人 |
WALLACE, VOLNEY;PINKHAM, CARLOS F. A. |
发明人 |
WALLACE, VOLNEY;PINKHAM, CARLOS F. A. |
| 分类号 |
A01G13/00;A01G13/04;(IPC1-7):A01G13/00 |
主分类号 |
A01G13/00 |
| 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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