2284322

Information

• Patent Grant
• 2284322

• References
• Source

• Patent Number

  2,284,322

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1942
  82 years ago

• CPC

  • H04L17/06 - Contact operating means

• US Classifications

  • 370 - Multiplex communications
  • 178 - Telegraphy