2820389

Information

• Patent Grant
• 2820389

• References
• Source

• Patent Number

  2,820,389

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1958
  67 years ago

• CPC

  • G10D1/12 - of zithers

• US Classifications

  • 084 - Music
  • D17 - Musical instruments