2890391

Information

• Patent Grant
• 2890391

• References
• Source

• Patent Number

  2,890,391

• Date Filed

  Not available

• Date Issued

  Tuesday, June 9, 1959
  66 years ago

• CPC

  • H01H43/308 - based on the change of electrical properties
  • Y10T137/6416 - With heating or cooling of the system

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 137 - Fluid handling
  • 251 - Valves and valve actuation
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets