H01J 1/40

Forming part of the envelope of the tube or lamp

Official title: forming part of the envelope of the tube or lamp

H01J1/40 (Forming part of the envelope of the tube or lamp) appears on 3 US grants and 3 published applications in this corpus.

Search patents in H01J
Granted patents
3
Published applications
3
Assignees
2
Inventors
2
Latest grant
24 Aug 2021