CPC Subgroup Additional Only
H03H 2003/0414 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 the manufacture of piezoelectric or electrostrictive resonators or networks (H03H3/08 takes precedence) > for obtaining desired frequency or temperature coefficient
7 direct subcodes
Child Classifications
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