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PCE
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DIFF Subgroup
H01T 4/12

hermetically sealed

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Overvoltage arresters using spark gaps > having a single gap or a plurality of gaps in parallel > hermetically sealed

CPC:

Overvoltage arresters using spark gaps (H01T2/00 takes precedence; overvoltage protection circuits using spark gaps H02H9/06) > having a single gap or a plurality of gaps in parallel > hermetically sealed

No child classifications to compare. This is a leaf node in both IPC and CPC.