3384818

Information

• Patent Grant
• 3384818

• References
• Source

• Patent Number

  3,384,818

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1968
  56 years ago

• CPC

  • H03D3/26 - by means of sloping amplitude/frequency characteristic of tuned or reactive circuit
  • G01S1/72 - using ultrasonic, sonic or infrasonic waves
  • G01S13/585 - processing the video signal in order to evaluate or display the velocity value
  • H03D3/14 - by means of semiconductor devices having more than two electrodes

• US Classifications

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