3815466

Information

• Patent Grant
• 3815466

• References
• Source

• Patent Number

  3,815,466

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1974
  50 years ago

• CPC

  • G10D7/04 - Ocarinas

• US Classifications

  • 084 - Music
  • 984 - Musical instruments