专利名称：High efficiency ceiling fan发明人：Gregory Michael Bird申请号：US11326908申请日：20060107公开号：US07131819B2公开日：20061107
专利附图：
摘要：Ceiling fan energy consumption efficiency is enhanced with fan blades that havean angle attack that decreases from root end to tip end at higher rates of decreasenearer their tip ends than at their root ends.
申请人：Gregory Michael Bird
地址：Collierville TN US
国籍：US
代理人：Baker Donelson et al.
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