3564574

Information

• Patent Grant
• 3564574

• References
• Source

• Patent Number

  3,564,574

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1971
  54 years ago

• CPC

  • G10D9/043 - for woodwind instruments
  • G10F5/02 - Actions

• US Classifications

  • 084 - Music
  • 984 - Musical instruments