1339689

Information

• Patent Grant
• 1339689

• References
• Source

• Patent Number

  1,339,689

• Date Filed

  Not available

• Date Issued

  Tuesday, May 11, 1920
  104 years ago

• CPC

  • G10C3/106 - the axis of the pins being perpendicular to the string

• US Classifications

  • 084 - Music