IPC Subgroup
H01K 3/22 Exhausting, degassing, filling, or cleaning vessels
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus or processes adapted to the manufacture, installing, removal or maintenance of incandescent lamps or parts thereof > Exhausting, degassing, filling, or cleaning vessels
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC INCANDESCENT LAMPS
Related Keywords
CLEANING vessels of electric incandescent lampsDEGASSING of electric incandescent lampsEXHAUSTING of electric incandescent lampsFILLING of electric incandescent lamps
1 direct subcode
Child Classifications
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- H01K 3/24 Machines therefor