2205672

Information

• Patent Grant
• 2205672

• References
• Source

• Patent Number

  2,205,672

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1940
  84 years ago

• CPC

  • H01J61/96 - Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope
  • H01J61/94 - Paths producing light of different wavelenghts

• US Classifications

  • 362 - Illumination
  • 313 - Electric lamp and discharge devices