3467780

Information

• Patent Grant
• 3467780

• References
• Source

• Patent Number

  3,467,780

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1969
  55 years ago

• CPC

  • H04M15/32 - Charging, billing or metering arrangements for satellites or concentrators which connect one or more exchange lines with a group of local lines
  • H04M15/04 - Recording calls , or communications in printed, perforated or other permanent form
  • H04Q3/545 - using a stored programme

• US Classifications

  • 379 - Telephonic communications
  • 340 - Communications: electrical