3542936

Information

• Patent Grant
• 3542936

• References
• Source

• Patent Number

  3,542,936

• Date Filed

  Not available

• Date Issued

  Tuesday, November 24, 1970
  54 years ago

• CPC

  • G10H3/20 - using a tuning fork, rod or tube

• US Classifications

  • 084 - Music
  • 984 - Musical instruments