Circuits

Introduced: January 1980

Full Title

Heating by electric, magnetic or electromagnetic fields > Heating using microwaves > Circuits

CPC subdivides this area 5x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

IPC defines codes here since 1980.

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H05B 6/662 CPC only CPC only
H05B 6/664 CPC only CPC only
H05B 6/666 CPC only CPC only
H05B 6/668 CPC only CPC only
H05B 6/68 for monitoring or control since 1980 +4 CPC IPC+CPC Available in IPC and CPC