John King (1925 – 2000) – Sonic transducer
A sonic transducer uses sound waves to determine an object’s speed, distance, and other units of measurement. John King invented an early warning sonic transducer in 1972, which could detect potential problems with aircraft engines before takeoff. A professional in the aerospace and safety industries, he also invented an alarm system in 1999; it was not just any other alarm system for home uses but a NASA-approved one.
FBA INVENTORS: John King (1925 – 2000) – Sonic transducer
$5.00Price
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