1439652

Information

• Patent Grant
• 1439652

• References
• Source

• Patent Number

  1,439,652

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1922
  102 years ago

• CPC

  • G10B3/18 - Tremolo-producing devices

• US Classifications

  • 084 - Music
  • 200 - Electricity: circuit makers and breakers
  • 984 - Musical instruments