Acoustics
Anatomic or prosthetic relation
Ear and mouth
Inventor
active
Electret transducer with a selectively metalized backplate
Electret transducer with variable actual air gap
Electret transducer with variable effective air gap
Electret transducer with variable electret foil thickness
Electret transducer with variably charged electret foil
No associations
LandOfFree
Robert L. Wallace, Jr. does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Robert L. Wallace, Jr., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Robert L. Wallace, Jr. will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-229790