2697751

Information

• Patent Grant
• 2697751

• References
• Source

• Patent Number

  2,697,751

• Date Filed

  Not available

• Date Issued

  Tuesday, December 21, 1954
  70 years ago

• CPC

  • H04Q1/18 - Electrical details

• US Classifications

  • 324 - Electricity: measuring and testing
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 340 - Communications: electrical