3814311

Information

• Patent Grant
• 3814311

• References
• Source

• Patent Number

  3,814,311

• Date Filed

  Not available

• Date Issued

  Tuesday, June 4, 1974
  50 years ago

• CPC

  • G05B11/44 - pneumatic only
  • G05D23/185 - with auxiliary non-electric power

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 165 - Heat exchange