2829204

Information

• Patent Grant
• 2829204

• References
• Source

• Patent Number

  2,829,204

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1958
  66 years ago

• CPC

  • H04M19/06 - Current supply source at subordinate switching centre charged from main exchange
  • H04Q5/02 - with direct connection for all subscribers

• US Classifications

  • 379 - Telephonic communications
  • 370 - Multiplex communications