Patent classifications
H
ELECTRICITY
Load children
H01
ELECTRIC ELEMENTS
Load children
H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Load children
17/00
Gas-filled discharge tubes with solid cathode
Load children Filter patents View analytics View as hierarchy
H01J17/18
Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
Load children Filter patents View analytics View as hierarchy