1790152

Information

• Patent Grant
• 1790152

• References
• Source

• Patent Number

  1,790,152

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1931
  94 years ago

• CPC

  • H01J17/58 - with more than one cathode or anode
  • H01J19/68 - Specified gas introduced into the tube at low pressure

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 200 - Electricity: circuit makers and breakers
  • 313 - Electric lamp and discharge devices
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 361 - Electricity: electrical systems and devices