2509365

Information

• Patent Grant
• 2509365

• References
• Source

• Patent Number

  2,509,365

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1950
  74 years ago

• CPC

  • H03F1/54 - with tubes only
  • H04B17/403 - generated by local oscillators

• US Classifications

  • 370 - Multiplex communications
  • 324 - Electricity: measuring and testing
  • 330 - Amplifiers
  • 340 - Communications: electrical