Patent Classification Explorer PCE

DIFF Main Group

H04K 3/00

Jamming of communication; Counter-measures

Introduced: September 1968

Of 4 combined children, 0 exist in both systems.

4 codes are CPC-only extensions.

Child Classifications

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H04K 3/20 +3 CPC CPC only CPC only
H04K 3/40 +6 CPC CPC only CPC only
H04K 3/60 +3 CPC CPC only CPC only
H04K 3/80 +7 CPC CPC only CPC only