3378624

Information

• Patent Grant
• 3378624

• References
• Source

• Patent Number

  3,378,624

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1968
  57 years ago

• CPC

  • G10H1/30 - to reiteratively sound two tones

• US Classifications

  • 084 - Music
  • 340 - Communications: electrical
  • 984 - Musical instruments