2840737

Information

• Patent Grant
• 2840737

• References
• Source

• Patent Number

  2,840,737

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1958
  66 years ago

• CPC

  • H01J13/32 - Cooling arrangements Heating arrangements

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems