3675074

Information

• Patent Grant
• 3675074

• References
• Source

• Patent Number

  3,675,074

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1972
  53 years ago

• CPC

  • H05B41/325 - by measuring the incident light
  • H01H51/32 - Frequency relays Mechanically-tuned relays
  • Y10S323/902 - Optical coupling to semiconductor

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 323 - Electricity: power supply or regulation systems