3562394

Information

• Patent Grant
• 3562394

• References
• Source

• Patent Number

  3,562,394

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1971
  53 years ago

• CPC

  • G09B15/04 - with sound emitters
  • G10G7/02 - Tuning forks or like devices
  • G10H1/34 - Switch arrangements
  • G10H2220/236 - representing an active musical staff or tablature

• US Classifications

  • 084 - Music
  • 984 - Musical instruments