3081417

Information

• Patent Grant
• 3081417

• References
• Source

• Patent Number

  3,081,417

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1963
  62 years ago

• CPC

  • H05B37/0218 - by the ambient light
  • H01H43/306 - of liquids
  • Y02B20/46 - based on detection of the illumination level
  • Y02B20/72 - in street lighting

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 250 - Radiant energy
  • 337 - Electricity: electrothermally or thermally actuated switches