CPC Subgroup
H03K 29/04 using multi-cathode gas discharge tubes
Full Title
Pulse counters comprising multi-stable elements, e.g. for ternary scale, for decimal scale; Analogous frequency dividers > using multi-cathode gas discharge tubes
H03K 29/04 Pulse counters comprising multi-stable elements, e.g. for ternary scale, for decimal scale; Analogous frequency dividers > using multi-cathode gas discharge tubes