1976874

Information

• Patent Grant
• 1976874

• References
• Source

• Patent Number

  1,976,874

• Date Filed

  Not available

• Date Issued

  Tuesday, October 16, 1934
  90 years ago

• CPC

  • H04R9/025 - Magnetic circuit
  • H04R2209/021 - Reduction of eddy currents in the magnetic circuit of electrodynamic loudspeaker transducer

• US Classifications

  • 381 - Electrical audio signal processing systems and devices