Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
Inventor
active
No associations
LandOfFree
Francis D. Orr does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Francis D. Orr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Francis D. Orr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-411805