发明授权
- 专利标题: Procedure and device for felling of timber
- 专利标题(中): 木材粉碎的程序和装置
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申请号: US3643920D申请日: 1969-03-17
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公开(公告)号: US3643920A公开(公告)日: 1972-02-22
- 发明人: WIDEGREN LARS HARALD , KESKITALO TAGE OSKAR
- 申请人: LARS HARALD WIDEGREN , TAGE OSKAR KESKITALO
- 专利权人: Lars Harald Widegren,Tage Oskar Keskitalo
- 当前专利权人: Lars Harald Widegren,Tage Oskar Keskitalo
- 优先权: SE894368 1968-06-28
- 主分类号: A01G23/06
- IPC分类号: A01G23/06 ; B66F3/00 ; A01G23/08
摘要:
Timber-felling method according to which the tree is drawn up with its roots by a mechanical device, the tree being first pulled out of the ground in a vertical direction and thereafter prized at an increasing angle thereto.