1986531

Information

• Patent Grant
• 1986531

• References
• Source

• Patent Number

  1,986,531

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1935
  90 years ago

• CPC

  • G10H3/08 - using inductive pick-up means

• US Classifications

  • 310 - Electrical generator or motor structure
  • 084 - Music
  • 984 - Musical instruments