3648273

Information

• Patent Grant
• 3648273

• References
• Source

• Patent Number

  3,648,273

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1972
  52 years ago

• CPC

  • G08B5/36 - using visible light sources
  • H01H43/304 - of two bodies expanding or contracting in a different manner

• US Classifications

  • 340 - Communications: electrical
  • 337 - Electricity: electrothermally or thermally actuated switches