1906269

Information

• Patent Grant
• 1906269

• References
• Source

• Patent Number

  1,906,269

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1933
  91 years ago

• CPC

  • H04J7/02 - in which the polarity of the amplitude is characteristic

• US Classifications

  • 332 - Modulators
  • 370 - Multiplex communications
  • 455 - Telecommunications