2850579

Information

• Patent Grant
• 2850579

• References
• Source

• Patent Number

  2,850,579

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1958
  66 years ago

• CPC

  • H04Q5/20 - the subordinate centre permitting interconnection of subscribers connected thereto
  • H04M9/00 - Interconnection arrangements not involving centralised switching

• US Classifications

  • 379 - Telephonic communications