3481241

Information

• Patent Grant
• 3481241

• References
• Source

• Patent Number

  3,481,241

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1969
  55 years ago

• CPC

  • G10G1/02 - Chord or note indicators, fixed or adjustable, for keyboard of fingerboards
  • G09B15/006 - with indication of the keys or strings to be played on instruments
  • G09B15/008 - with indication of the keys or strings to be played on instruments

• US Classifications

  • 084 - Music
  • 235 - Registers
  • 984 - Musical instruments