Uncategorized
Inventor
Duplex photo-modulator
Electrical impulse amplification and reproduction
Engraving method
Photo-cell amplifier
Tube commutator
No associations
LandOfFree
H. Ranger Richard does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with H. Ranger Richard, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and H. Ranger Richard will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-689615