Uncategorized
Inventor
Loud speaker
Loud speaker
Telephone receiver shield
Telephone transmitter
Testing system for transmitters and receivers
No associations
LandOfFree
P. Minton John does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with P. Minton John, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and P. Minton John will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-693454