"Micro Cooling Fan" History: In 1872, a Frenchman named Joseph has developed a turbo start by clockwork, gear drive chain means mechanical fan, this fan than Byron mechanical invention "Micro Cooling Fan" History refined more, use is also convenient. 1880, American Shule first blade mounted directly on the motor, connect the power supply, the rapid rotation of the blades, cool breeze blowing, which is the world's first "Micro Cooling Fan" of history. This is a fan of history, now you know the world's first appearance of the fan is when it? DC fan manufacturers producing all kinds of professional development Xin fan speed fans, welcome to inquire procurement.