3822560

Information

• Patent Grant
• 3822560

• References
• Source

• Patent Number

  3,822,560

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1974
  50 years ago

• CPC

  • F25D21/02 - Detecting the presence of frost or condensate
  • F25B2700/111 - using an emitter and receiver

• US Classifications

  • 062 - Refrigeration