2581426

Information

• Patent Grant
• 2581426

• References
• Source

• Patent Number

  2,581,426

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1952
  73 years ago

• CPC

  • H04L25/202 - using mechanical devices
  • H04L13/10 - Distributors
  • H04L17/30 - using electric or electronic translation

• US Classifications

  • 178 - Telegraphy
  • 324 - Electricity: measuring and testing