2837607

Information

• Patent Grant
• 2837607

• References
• Source

• Patent Number

  2,837,607

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1958
  66 years ago

• CPC

  • H04R25/554 - using a wireless connection
  • H04R25/04 - comprising pocket amplifiers
  • H04R25/552 - Binaural

• US Classifications

  • 379 - Telephonic communications