1950445

Information

• Patent Grant
• 1950445

• References
• Source

• Patent Number

  1,950,445

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1934
  90 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
  • F21S48/119 - Fluorescent, elongated light source
  • F21S48/1195 - Combination of light sources of different types or shapes
  • H01J61/96 - Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope

• US Classifications

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