3171018

Information

• Patent Grant
• 3171018

• References
• Source

• Patent Number

  3,171,018

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1965
  60 years ago

• CPC

  • G05D23/2456 - using selfs or transformers

• US Classifications

  • 219 - Electric heating
  • 236 - Automatic temperature and humidity regulation
  • 336 - Inductor devices