2678415

Information

• Patent Grant
• 2678415

• References
• Source

• Patent Number

  2,678,415

• Date Filed

  Not available

• Date Issued

  Tuesday, May 11, 1954
  70 years ago

• CPC

  • H03J1/20 - the auxiliary power being switched on as long as controlling current is switched on

• US Classifications

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