3643863

Information

• Patent Grant
• 3643863

• References
• Source

• Patent Number

  3,643,863

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • G05D23/125 - the sensing element being placed outside a regulating fluid flow

• US Classifications

  • 236 - Automatic temperature and humidity regulation