3751686

Information

• Patent Grant
• 3751686

• References
• Source

• Patent Number

  3,751,686

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1973
  51 years ago

• CPC

  • H04L25/24 - Relay circuits using discharge tubes or semiconductor devices
  • H03K17/601 - using transformer coupling
  • H03K17/6207 - without selecting means

• US Classifications

  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 178 - Telegraphy