2882342

Information

• Patent Grant
• 2882342

• References
• Source

• Patent Number

  2,882,342

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1959
  65 years ago

• CPC

  • H04Q3/525 - using tubes in the switching stages

• US Classifications

  • 379 - Telephonic communications
  • 370 - Multiplex communications