CPC Subgroup Additional Only
H01J 2893/0034 Lamp bases
Full Title
Discharge tubes and lamps > Vacuum connection techniques applicable to discharge tubes and lamps > Lamp bases
2 direct subcodes
Child Classifications
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- H01J 2893/0035 shaped as flat plates, in particular metallic
- H01J 2893/0036 having wires, ribbons or tubes placed between two vessel walls and being perpendicular to at least one of said walls