An object of the present invention is to provide a larger natural wind can cause a wake -style tool with less energy than fan and a sense . .. I have A and mandrel which is set in the movable cylinder 9 , the wings 8 rotatably mounted a mandrel as an axis . It is possible to cause the wind By rotating the mandrel that has spread its wings . Also , it may be installed functions such as ball-point pen or ear rod mandrel so compact to be portable . .. [ Selection Figure Figure 2 .
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