3808448

Information

• Patent Grant
• 3808448

• References
• Source

• Patent Number

  3,808,448

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1974
  50 years ago

• CPC

  • B60Q1/0023 - the element being a sensor
  • B60Q1/2603 - Attenuation of the light according to ambient luminiosity
  • B60Q1/30 - for indicating rear of vehicle
  • F21S48/1736 - by acting on light sources
  • F21W2101/02 - for land vehicles

• US Classifications

  • 315 - Electric lamp and discharge devices: systems