2477821

Information

• Patent Grant
• 2477821

• References
• Source

• Patent Number

  2,477,821

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1949
  75 years ago

• CPC

  • H04L13/10 - Distributors

• US Classifications

  • 370 - Multiplex communications
  • 250 - Radiant energy