1825560

Information

• Patent Grant
• 1825560

• References
• Source

• Patent Number

  1,825,560

• Date Filed

  Not available

• Date Issued

  Tuesday, September 29, 1931
  93 years ago

• CPC

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

• US Classifications

  • 084 - Music