2978647

Information

• Patent Grant
• 2978647

• References
• Source

• Patent Number

  2,978,647

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1961
  63 years ago

• CPC

  • H03J3/10 - Circuit arrangements for fine tuning
  • H03J1/18 - Control by auxiliary power
  • H04B17/21 - for calibration for correcting measurements

• US Classifications

  • 330 - Amplifiers
  • 318 - Electricity: motive power systems
  • 324 - Electricity: measuring and testing
  • 333 - Wave transmission lines and networks
  • 334 - Tuners
  • 455 - Telecommunications