3718747

Information

• Patent Grant
• 3718747

• References
• Source

• Patent Number

  3,718,747

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1973
  51 years ago

• CPC

  • G10K11/04 - Acoustic filters ; Acoustic resonators
  • Y10S84/01 - Plural speakers
  • Y10S84/17 - Cabinets

• US Classifications

  • 084 - Music