3089458

Information

• Patent Grant
• 3089458

• References
• Source

• Patent Number

  3,089,458

• Date Filed

  Not available

• Date Issued

  Tuesday, May 14, 1963
  61 years ago

• CPC

  • G10K7/005 - Ultrasonic sirens
  • Y10S116/18 - Wave generators

• US Classifications

  • 116 - Signals and indicators