3074051

Information

• Patent Grant
• 3074051

• References
• Source

• Patent Number

  3,074,051

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1963
  62 years ago

• CPC

  • H04W88/028 - using pulse address codes
  • H04M19/04 - ringing-current generated at substation
  • H04Q5/16 - by predetermined number of pulses
  • Y10T74/1555 - Rotary driven element

• US Classifications

  • 340 - Communications: electrical
  • 074 - Machine element or mechanism
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets