2454765

Information

• Patent Grant
• 2454765

• References
• Source

• Patent Number

  2,454,765

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1948
  76 years ago

• CPC

  • F21S48/1181 - having a filament being arranged transversally to the optical axis of the headlamp
  • F21S48/1168 - Incandescent light sources
  • F21S48/1172 - having two or more filaments
  • F21S48/1177 - characterised by the shape of the filament
  • H01K1/14 - characterised by the shape
  • H01K7/02 - for producing a narrow beam of light for approximating a point like sourse of light

• US Classifications

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