3154635

Information

• Patent Grant
• 3154635

• References
• Source

• Patent Number

  3,154,635

• Date Filed

  Not available

• Date Issued

  Tuesday, October 27, 1964
  60 years ago

• CPC

  • H04L19/00 - Apparatus or local circuits for step-by-step systems
  • H04L25/24 - Relay circuits using discharge tubes or semiconductor devices

• US Classifications

  • 178 - Telegraphy