CPC Subgroup
H01J 13/26 Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
Full Title
Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes > Details > Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
2 direct subcodes
Child Classifications
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