3447411

Information

• Patent Grant
• 3447411

• References
• Source

• Patent Number

  3,447,411

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1969
  55 years ago

• CPC

  • G10D1/04 - of harps, lyres

• US Classifications

  • 084 - Music
  • D17 - Musical instruments