3643538

Information

• Patent Grant
• 3643538

• References
• Source

• Patent Number

  3,643,538

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • G10D7/023 - Recorders
  • G10D9/02 - Mouthpieces Reeds; Ligatures

• US Classifications

  • 084 - Music
  • 984 - Musical instruments