Interesting Old Patents

Interesting Old Patents

Portable and Hand-Held Device for Making Humanly Audible Sounds Responsive to the Detecting of Ultrasonic Sounds

Portable and Hand-Held Device for Making Humanly Audible Sounds Responsive to the Detecting of Ultrasonic Sounds

Metadata

Patent Number: 6426919

Patent Date: July 30, 2002

Added to IOP: May 15, 2024, 12:34 a.m.

Short Description

Looks like a handheld LRAD style device causing people nearby to hear without feeling where the sound waves are coming from, but the ear does vibrate.

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