3906479

Information

• Patent Grant
• 3906479

• References
• Source

• Patent Number

  3,906,479

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1975
  49 years ago

• CPC

  • G01R19/16576 - comparing DC or AC voltage with one threshold
  • G01R22/02 - by electrolytic methods
  • H01H43/327 - acting by coulometric transfer of material
  • H03K3/37 - by the use, as active elements, of gas-filled tubes
  • H03K3/40 - by the use, as active elements, of electrochemical cells

• US Classifications

  • 340 - Communications: electrical