1505597

Information

• Patent Grant
• 1505597

• References
• Source

• Patent Number

  1,505,597

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1924
  100 years ago

• CPC

  • G10D9/046 - with continuous change of tonal pitch

• US Classifications

  • 084 - Music
  • 984 - Musical instruments