2392394

Information

• Patent Grant
• 2392394

• References
• Source

• Patent Number

  2,392,394

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1946
  79 years ago

• CPC

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

• US Classifications

  • 244 - Aeronautics and astronautics
  • 116 - Signals and indicators