3632904

Information

• Patent Grant
• 3632904

• References
• Source

• Patent Number

  3,632,904

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1972
  53 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
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets