TREA

Generating ringing or calling signals or tones

Follow

Industry

  • CPC
  • H04N1/32741
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H04Electric communication H04NPICTORIAL COMMUNICATION H04N1/00Scanning, transmission or reproduction of documents or the like

Current Industry

H04N1/32741Generating ringing or calling signals or tones
Industries