2790459

Information

• Patent Grant
• 2790459

• References
• Source

• Patent Number

  2,790,459

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1957
  67 years ago

• CPC

  • G05D9/12 - characterised by the use of electric means
  • F22D5/12 - and with dipping tubes
  • Y10T137/7368 - Servo relay operation of control

• US Classifications

  • 137 - Fluid handling
  • 200 - Electricity: circuit makers and breakers