3342939

Information

• Patent Grant
• 3342939

• References
• Source

• Patent Number

  3,342,939

• Date Filed

  Not available

• Date Issued

  Tuesday, September 19, 1967
  57 years ago

• CPC

  • H04M15/00 - Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications
  • H04M15/18 - according to duration of the call , or the communication

• US Classifications

  • 379 - Telephonic communications