2494533

Information

• Patent Grant
• 2494533

• References
• Source

• Patent Number

  2,494,533

• Date Filed

  Not available

• Date Issued

  Tuesday, January 17, 1950
  74 years ago

• CPC

  • H03J1/20 - the auxiliary power being switched on as long as controlling current is switched on
  • G05D3/10 - without using feedback

• US Classifications

  • 318 - Electricity: motive power systems
  • 340 - Communications: electrical