1838284

Information

• Patent Grant
• 1838284

• References
• Source

• Patent Number

  1,838,284

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1931
  93 years ago

• CPC

  • G10G1/02 - Chord or note indicators, fixed or adjustable, for keyboard of fingerboards
  • G10F5/04 - Tune barrels, sheets, rollers, spools, or the like

• US Classifications

  • 084 - Music