3812456

Information

• Patent Grant
• 3812456

• References
• Source

• Patent Number

  3,812,456

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  51 years ago

• CPC

  • G10K11/04 - Acoustic filters ; Acoustic resonators
  • F42B22/04 - Influenced mines
  • Y10S181/402 - Liquid

• US Classifications

  • 367 - Communications, electrical: acoustic wave systems and devices
  • 181 - Acoustics