2520631

Information

• Patent Grant
• 2520631

• References
• Source

• Patent Number

  2,520,631

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1950
  74 years ago

• CPC

  • H03J5/248 - using electromechanical means

• US Classifications

  • 318 - Electricity: motive power systems
  • 116 - Signals and indicators
  • 334 - Tuners
  • 340 - Communications: electrical
  • 361 - Electricity: electrical systems and devices