2305757

Information

• Patent Grant
• 2305757

• References
• Source

• Patent Number

  2,305,757

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1942
  83 years ago

• CPC

  • F21V29/00 - Protecting lighting devices from thermal damage Cooling or heating arrangements specially adapted for lighting devices or systems
  • H05B31/04 - Housings

• US Classifications

  • 313 - Electric lamp and discharge devices