2093812

Information

• Patent Grant
• 2093812

• References
• Source

• Patent Number

  2,093,812

• Date Filed

  Not available

• Date Issued

  Tuesday, September 21, 1937
  87 years ago

• CPC

  • H04M11/06 - Simultaneous speech and telegraphic or other data transmission over the same conductors
  • H04J7/02 - in which the polarity of the amplitude is characteristic

• US Classifications

  • 370 - Multiplex communications