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In 1872, a Frenchman named Joseph developed a mechanical fan started by a clockwork turbine and driven by a gear chain device. This fan was much more refined and easier to use than the mechanical fan invented by Byron.
In 1880, the American Shule installed the blades directly on the electric motor for the first time, and then connected the power supply. The blades rotated rapidly, and the cool breeze blew in. This was the world's first electric fan.