2315249

Information

• Patent Grant
• 2315249

• References
• Source

• Patent Number

  2,315,249

• Date Filed

  Not available

• Date Issued

  Tuesday, March 30, 1943
  81 years ago

• CPC

  • H04B1/66 - for reducing bandwidth of signals for improving efficiency of transmission
  • H03G5/20 - having discharge tubes

• US Classifications

  • 381 - Electrical audio signal processing systems and devices