Electrical resistors
Mechanically variable
With switch
Inventor
active
Combined rotary potentiometer and switch
Hearing aid volume control
Worm gear drive and ratchet system
No associations
LandOfFree
Donald Harrison Stephens does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Donald Harrison Stephens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Donald Harrison Stephens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-867195