Category:Acoustic devices
From ETHW
File:Acoustic Devices 1987 USS Illusive Lowers an Acoustical Device During an Exercise Attribution.jpg
A 1987 photo of The USS Illusive lowering an an acoustical device to look for old mines - Photo by The U.S. Navy.
Pages in category "Acoustic devices"
The following 2 pages are in this category, out of 2 total.
