3713417

Information

• Patent Grant
• 3713417

• References
• Source

• Patent Number

  3,713,417

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1973
  51 years ago

• CPC

  • G10K5/02 - Ultrasonic whistles

• US Classifications

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