Measuring and testing
Vibration
By mechanical waves
Inventor
active
Methods and systems for controlling noise cancellation
Methods and systems for determining the effectiveness of...
Noise suppression louver having horizontal and vertical slats
Pulse echo and through transmission ultra-sound
Shaped modulation audible alarm
No associations
LandOfFree
David C. Copley does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with David C. Copley, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and David C. Copley will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-1678644