发明名称 |
Nest box, containing ladder grooves and having concave rear piece fitted to tree trunk using wooden nails |
摘要 |
The roof slopes down from the rear panel (2) to prevent water getting into the nest. Ladder grooves (4) are formed in a vertical panel to help the bird get out of the nest and through the nest box opening. A concave rear part enables the box to be firmly secured to a tree trunk using wooden nails. |
申请公布号 |
SE512391(C2) |
申请公布日期 |
2000.03.13 |
申请号 |
SE19980003059 |
申请日期 |
1998.09.08 |
申请人 |
ERLAND LUNDGREN |
发明人 |
ERLAND *LUNDGREN |
分类号 |
A01K;A01K31/14;(IPC1-7):A01K31/14 |
主分类号 |
A01K |
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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