3222551

Information

• Patent Grant
• 3222551

• References
• Source

• Patent Number

  3,222,551

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1965
  60 years ago

• CPC

  • G05D23/2237 - using discharge tubes
  • Y10T307/872 - Repetitive make and break

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 219 - Electric heating
  • 236 - Automatic temperature and humidity regulation
  • 331 - Oscillators