Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators (H03F3/54 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators

CPC: Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators (H03F3/54 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements > Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators

CPC:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements > Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators (H03F3/54 takes precedence)

Of 4 combined children, 0 exist in both systems.

4 codes are CPC-only extensions.

Child Classifications

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H03F 3/601 CPC only CPC only
H03F 3/602 +1 CPC CPC only CPC only
H03F 3/605 +1 CPC CPC only CPC only
H03F 3/608 CPC only CPC only