1464729

Information

• Patent Grant
• 1464729

• References
• Source

• Patent Number

  1,464,729

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1923
  101 years ago

• CPC

  • G10H3/08 - using inductive pick-up means

• US Classifications

  • 084 - Music
  • 340 - Communications: electrical
  • 984 - Musical instruments