2721930

Information

• Patent Grant
• 2721930

• References
• Source

• Patent Number

  2,721,930

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1955
  69 years ago

• CPC

  • G08G1/095 - Traffic lights
  • B61L5/1809 - Daylight signals

• US Classifications

  • 362 - Illumination
  • 340 - Communications: electrical