2518909

Information

• Patent Grant
• 2518909

• References
• Source

• Patent Number

  2,518,909

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1950
  74 years ago

• CPC

  • H01K1/64 - with built-in switch
  • G08B5/38 - using flashing light
  • H05B41/46 - Circuits providing for substitution in case of failure of the lamp

• US Classifications

  • 340 - Communications: electrical
  • 200 - Electricity: circuit makers and breakers
  • 315 - Electric lamp and discharge devices: systems
  • 318 - Electricity: motive power systems
  • 337 - Electricity: electrothermally or thermally actuated switches
  • 368 - Horology: time measuring systems or devices