Patent classifications
H
ELECTRICITY
Load children
H01
ELECTRIC ELEMENTS
Load children
H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Load children
61/00
Gas-discharge or vapour-discharge lamps
Load children Filter patents View analytics View as hierarchy
H01J61/82
Lamps with high-pressure unconstricted discharge; having a cold pressure > 400 Torr
Load children Filter patents View analytics View as hierarchy
H01J61/827
Metal halide arc lamps
Filter patents View analytics View as hierarchy