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经营范围
发明名称
Gardening device
摘要
A device and method are disclosed for protecting plants from cold weather damage. A transparent, fluid-filled enclosure encircles a plant above the ground. A heater warms the fluid, which in turn warms the plant.
申请公布号
US6640491(B1)
申请公布日期
2003.11.04
申请号
US20020269642
申请日期
2002.10.11
申请人
FOX JOHN GREGORY
发明人
FOX JOHN GREGORY
分类号
A01G13/04;(IPC1-7):A01G13/02
主分类号
A01G13/04
代理机构
代理人
主权项
地址
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