1765472

Information

• Patent Grant
• 1765472

• References
• Source

• Patent Number

  1,765,472

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1930
  94 years ago

• CPC

  • H04L13/12 - Non-mechanical distributors

• US Classifications

  • 370 - Multiplex communications
  • 178 - Telegraphy
  • 246 - Railway switches and signals