Electric lamp and discharge devices
With gas or vapor
Having lead-in shield
Inventor
active
Electric lamp
Electric lamp
No associations
LandOfFree
Jacobus Johannes Chretien Coumans does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Jacobus Johannes Chretien Coumans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jacobus Johannes Chretien Coumans will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-2394100