-
公开(公告)号：US3566973A
公开(公告)日：1971-03-02
申请号：US3566973D
申请日：1968-08-05
申请人： WALTER BRADLEY
发明人： BLAIR CHARLES S , BRADLEY WALTER
IPC分类号： A01B45/02
CPC分类号： A01B45/02
摘要： A lawn-aerating machine has a chassis which may be moved about the lawn on wheels. A transmission case moves vertically relative to the chassis and from the case depend drills shaped to dig holes in the lawn. A prime mover drives each of the drills. Means is provided to lower the drills relative to the chassis under control of the operator.
搜索结果
1 条记录 (耗时 0.018 秒)
筛选
AND
AND
过滤
NOT
NOT
扫码加群
