3083356

Information

• Patent Grant
• 3083356

• References
• Source

• Patent Number

  3,083,356

• Date Filed

  Not available

• Date Issued

  Tuesday, March 26, 1963
  61 years ago

• CPC

  • G06Q30/04 - Billing or invoicing
  • G06K1/125 - by magnetic means
  • H04M15/04 - Recording calls , or communications in printed, perforated or other permanent form
  • H04M15/38 - Charging, billing or metering by apparatus other than mechanical step-by-step counter type

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 340 - Communications: electrical
  • 346 - Recorders