3714980

Information

• Patent Grant
• 3714980

• References
• Source

• Patent Number

  3,714,980

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1973
  51 years ago

• CPC

  • G05D22/02 - characterised by the use of electric means
  • G05D23/1912 - whose output amplitude can take more than two discrete values
  • G05D23/24 - the sensing element having a resistance varying with temperature
  • Y10S165/001 - with alarm, indicator, recorder, test, or inspection means

• US Classifications

  • 165 - Heat exchange