IPC Subgroup
H01J 17/18 Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
Introduced: September 1968
Last revised: January 2012
Full Title
Gas-filled discharge tubes with solid cathodes > Details > Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS