In 1970, the groundbreaking invention known as the "Ultrasonic Bath" captured the world's attention at the Japan World Exposition. Created by Sanyo Electric, today known as Panasonic Holdings Corp, ...
In context: Back in 1970, a futuristic "human washing machine" called the Ultrasonic Bath caused a sensation at the Japan World Exposition. The egg-shaped pod was developed and exhibited by Sanyo ...
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