2818530

Information

• Patent Grant
• 2818530

• References
• Source

• Patent Number

  2,818,530

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1957
  66 years ago

• CPC

  • G05D23/2035 - the sensing element being a ionized gas
  • G05D23/1919 - characterised by the type of controller
  • H01J13/32 - Cooling arrangements Heating arrangements
  • H01J17/28 - Cooling arrangements

• US Classifications

  • 315 - Electric lamp and discharge devices: systems