2883467

Information

• Patent Grant
• 2883467

• References
• Source

• Patent Number

  2,883,467

• Date Filed

  Not available

• Date Issued

  Tuesday, April 21, 1959
  65 years ago

• CPC

  • H04Q3/525 - using tubes in the switching stages
  • H03K17/52 - using gas-filled tubes

• US Classifications

  • 340 - Communications: electrical
  • 379 - Telephonic communications