CPC Subgroup
H03H 3/013 for obtaining desired frequency or temperature coefficient ( H03H3/04, H03H3/10 take precedence)
Full Title
Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators > for the manufacture of electromechanical resonators or networks > for obtaining desired frequency or temperature coefficient ( H03H3/04, H03H3/10 take precedence)