(under subclass 4.5) Subject matter including structure for propagating energy of the various frequencies in interacting relationship with the nonlinear reactance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4, for maser type amplifying devices.
5, for solid element wave propagating devices generally.
SEE OR SEARCH CLASS
307, Electrical Transmission or Interconnections Systems,
424, for nonoptical parametric amplifier frequency converters, per se. 332, Modulators,
117+, or 144+ for capacitive frequency or phase modulators, respectively, and subclass 173 for magnetic amplitude modulators.
333, Wave, Transmission Lines and Networks,
138+, for delay networks.
359, Optics: Systems (Including Communication) and Elements,
326+, for parametric optical frequency translators.
455, Telecommunications,
313+, for receivers with frequency modification or conversion
which may use parametric-type means; and subclass 336 for superrangenerative receivers.
