3889225

Information

• Patent Grant
• 3889225

• References
• Source

• Patent Number

  3,889,225

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1975
  49 years ago

• CPC

  • H03K7/06 - Frequency or rate modulation
  • G01S7/6227 - Plan-position indicators
  • Y10S367/902 - Speed of sound compensation

• US Classifications

  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 315 - Electric lamp and discharge devices: systems
  • 342 - Communications: directive radio wave systems and devices
  • 367 - Communications, electrical: acoustic wave systems and devices