Acoustics
Anatomic or prosthetic relation
Ear and mouth
Inventor
active
Chain-lock actuated magnetic switch
Loudspeaker system
No associations
LandOfFree
David E. Belles 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 E. Belles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and David E. Belles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-94758