3886492

Information

• Patent Grant
• 3886492

• References
• Source

• Patent Number

  3,886,492

• Date Filed

  Not available

• Date Issued

  Tuesday, May 27, 1975
  49 years ago

• CPC

  • A01M29/18 - using ultrasonic signals
  • H03K4/84 - Generators in which the semiconductor device is conducting during the fly-back part of the cycle
  • H04R25/00 - Deaf-aid sets providing an auditory perception; Electric tinnitus maskers providing an auditory perception

• US Classifications

  • 367 - Communications, electrical: acoustic wave systems and devices
  • 043 - Fishing, trapping, and vermin destroying