2352918

Information

• Patent Grant
• 2352918

• References
• Source

• Patent Number

  2,352,918

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1944
  80 years ago

• CPC

  • H04M7/08 - for phantom working
  • H04M11/062 - using different frequency bands for speech and other data

• US Classifications

  • 370 - Multiplex communications