Uncategorized
Inventor
Cathode for electron device
Cylindrical cathode
Electron gun
Method of manufacturing oxide cathodes and cathodes...
Method of producing a cathode for an electric discharge tube
No associations
LandOfFree
Hendrikus J. Lemmens does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Hendrikus J. Lemmens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hendrikus J. Lemmens will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-263692