3739680

Information

• Patent Grant
• 3739680

• References
• Source

• Patent Number

  3,739,680

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1973
  51 years ago

• CPC

  • G10D1/04 - of harps, lyres

• US Classifications

  • 084 - Music
  • 984 - Musical instruments