发明名称 Watering devices
摘要 A watering device comprising a flexible plastic bag with inlet and outlet necks whereby the bag may be filled and enabled to trickle water therefrom. The outlet neck is provided with a wick material and it is supported at a point therealong above the water level in the device so as to control the rate of outflow. The watering device is a split bag to encompass the base of a tree.
申请公布号 US5020271(A) 申请公布日期 1991.06.04
申请号 US19900515710 申请日期 1990.04.27
申请人 WALKER, DAVID A. 发明人 WALKER, DAVID A.
分类号 A01G13/02;A01G25/00 主分类号 A01G13/02
代理机构 代理人
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