Digisonix Trademarks

DIGISONIX
electronic sound and vibration control units and silencers, including active acoustic attenuation units
Cancelled  ·  February 13, 1992  ·  74246128  · 
DIGISONIX
ELECTRONIC SOUND CONTROL SYSTEMS FEATURING ACTIVE ACOUSTIC ATTENUATION UNITS
Cancelled  ·  May 21, 1987  ·  73662278  ·