TREA

Arrangements for simultaneously calling a number of substations until an answer is obtained

Follow

Industry

  • CPC
  • H04M3/465
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M3/00Automatic or semi-automatic exchanges

Current Industry

H04M3/465Arrangements for simultaneously calling a number of substations until an answer is obtained
Industries