2822489

Information

• Patent Grant
• 2822489

• References
• Source

• Patent Number

  2,822,489

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1958
  66 years ago

• CPC

  • H01J13/32 - Cooling arrangements Heating arrangements

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 236 - Automatic temperature and humidity regulation
  • 337 - Electricity: electrothermally or thermally actuated switches