3446182

Information

• Patent Grant
• 3446182

• References
• Source

• Patent Number

  3,446,182

• Date Filed

  Not available

• Date Issued

  Tuesday, May 27, 1969
  55 years ago

• CPC

  • G10K7/06 - in which the sound-producing member is driven by a fluid

• US Classifications

  • 116 - Signals and indicators
  • 340 - Communications: electrical