3809829

Information

• Patent Grant
• 3809829

• References
• Source

• Patent Number

  3,809,829

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • H04R25/552 - Binaural
  • G02C11/06 - Hearing aids
  • H04R2225/53 - Hearing aid for unilateral hearing impairment using Contralateral Routing Of Signals [CROS]

• US Classifications

  • 381 - Electrical audio signal processing systems and devices