2981478

Information

• Patent Grant
• 2981478

• References
• Source

• Patent Number

  2,981,478

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1961
  63 years ago

• CPC

  • G05D23/022 - the sensing element being placed within a regulating fluid flow
  • Y10S33/19 - Thermal expansive

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 033 - Geometrical instruments