3403382

Information

• Patent Grant
• 3403382

• References
• Source

• Patent Number

  3,403,382

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1968
  56 years ago

• CPC

  • H04Q9/14 - Calling by using pulses
  • B61L7/088 - Common line wire control using series of coded pulses
  • H04L1/00 - Arrangements for detecting or preventing errors in the information received

• US Classifications

  • 340 - Communications: electrical