2165502

Information

• Patent Grant
• 2165502

• References
• Source

• Patent Number

  2,165,502

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1939
  85 years ago

• CPC

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

• US Classifications

  • 375 - Pulse or digital communications
  • 334 - Tuners
  • 455 - Telecommunications