3872472

Information

• Patent Grant
• 3872472

• References
• Source

• Patent Number

  3,872,472

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1975
  49 years ago

• CPC

  • A01M29/18 - using ultrasonic signals
  • B06B1/0284 - with consecutive, i.e. sequential generation
  • B06B2201/75 - Repelling animals, insects, humans

• US Classifications

  • 340 - Communications: electrical
  • 043 - Fishing, trapping, and vermin destroying
  • 116 - Signals and indicators
  • 331 - Oscillators
  • 367 - Communications, electrical: acoustic wave systems and devices