3381490

Information

• Patent Grant
• 3381490

• References
• Source

• Patent Number

  3,381,490

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1968
  57 years ago

• CPC

  • G05D23/2453 - using discharge tubes
  • G05D23/1919 - characterised by the type of controller

• US Classifications

  • 062 - Refrigeration