IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS (measuring, testing G01R; arrangements for producing a reverberation or echo sound G10K 15/08; impedance networks or resonators consisting of distributed impedances, e.g. of the waveguide type, H01P; control of amplification, e.g. bandwidth control of amplifiers, H03G; tuning resonant circuits, e.g. tuning coupled resonant circuits, H03J; networks for modifying the frequency characteristics of communication systems H04B)
| Subclass | Title |
|---|---|
| 1/00 | Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network (constructional details of electromechanical transducers H03H 9/00) |
| 1/02 | Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network (constructional details of electromechanical transducers H03H 9/00) RC networks, e.g. filters (structural combinations of capacitors with other electric elements H01G) |
| 2/00 | Networks using elements or techniques not provided for in groups H03H 3/00-H03H 21/00 |
| 3/00 | Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators |
| 3/007 | Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks |
