2079440

Information

• Patent Grant
• 2079440

• References
• Source

• Patent Number

  2,079,440

• Date Filed

  Not available

• Date Issued

  Tuesday, May 4, 1937
  87 years ago

• CPC

  • H04L25/4902 - Pulse width modulation; Pulse position modulation
  • H04L25/42 - using mechanical distributors

• US Classifications

  • 178 - Telegraphy