2658188

Information

• Patent Grant
• 2658188

• References
• Source

• Patent Number

  2,658,188

• Date Filed

  Not available

• Date Issued

  Tuesday, November 3, 1953
  71 years ago

• CPC

  • H04Q1/40 - whereby duration of pulse or interval between two pulses is variable

• US Classifications

  • 340 - Communications: electrical
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 379 - Telephonic communications