Why do they need that? Amazon awarded a patent for ultrasonic wristband that can track employee’s movements

Why do they need that? Amazon awarded a patent for ultrasonic wristband that can track employee’s movements
(Natural News) Internet retail behemoth Amazon has been granted two patents for employee-tracking wristband system. Originally filed back in 2016, the United States Patent and Trademark Office (USPTO) published the patents on January 30 of this year. The proposed system would be composed of three elements: a management module to oversee warehouse operations, ultrasonic devices planted…
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