Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
Inventor
active
No associations
LandOfFree
Gwang Heon Ha does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Gwang Heon Ha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gwang Heon Ha will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-2678087