2130901

Information

• Patent Grant
• 2130901

• References
• Source

• Patent Number

  2,130,901

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1938
  86 years ago

• CPC

  • H03F1/546 - Delaying application of anode power supply with respect to application of filament heating power supply

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 200 - Electricity: circuit makers and breakers