发明名称 Tree trunk protector
摘要 A device for surrounding the trunk of trees comprising of two or more vertical pieces joined together by locking apparatus. Devices vary in size to accommodate different size trees. Once the device is installed, it serves to safeguard the lower trunk of trees from bumps and cuts.
申请公布号 US5048229(A) 申请公布日期 1991.09.17
申请号 US19880246876 申请日期 1988.10.28
申请人 CAMPBELL, VAN-DE R. 发明人 CAMPBELL, VAN-DE R.
分类号 A01G13/02;A01G13/10;E01F15/04;E01F15/14 主分类号 A01G13/02
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