2227599

Information

• Patent Grant
• 2227599

• References
• Source

• Patent Number

  2,227,599

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1941
  84 years ago

• CPC

  • G01R19/225 - by means of thermocouples or other heat sensitive elements
  • H01J1/20 - Cathodes heated indirectly by an electric current Cathodes heated by electron or ion bombardment
  • H01J19/82 - Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 310 - Electrical generator or motor structure