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PCE
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DIFF Subgroup
H01T 19/04

having pointed electrodes

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Devices providing for corona discharge > having pointed electrodes

CPC:

Devices providing for corona discharge (for charging electrographic elements G03G15/02) > having pointed electrodes

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