3693490

Information

• Patent Grant
• 3693490

• References
• Source

• Patent Number

  3,693,490

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1972
  52 years ago

• CPC

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

• US Classifications

  • 084 - Music