using electromechanical resonators, e.g. quartz crystals, as frequency determining element

Introduced: January 1980

Title

Titles differ between systems:

IPC: using electromechanical resonators, e.g. quartz crystals, as frequency-determining elements

CPC: using electromechanical resonators, e.g. quartz crystals, as frequency determining element

Full Title

Full titles differ between systems:

IPC:

Instruments in which the tones are generated by means of electronic generators > using electromechanical resonators, e.g. quartz crystals, as frequency-determining elements

CPC:

Instruments in which the tones are generated by means of electronic generators (G10H7/00 takes precedence) > using electromechanical resonators, e.g. quartz crystals, as frequency determining element

No child classifications to compare. This is a leaf node in both IPC and CPC.