3800095

Information

• Patent Grant
• 3800095

• References
• Source

• Patent Number

  3,800,095

• Date Filed

  Not available

• Date Issued

  Tuesday, March 26, 1974
  50 years ago

• CPC

  • H04M19/06 - Current supply source at subordinate switching centre charged from main exchange
  • H04M19/08 - Current supply source at substation

• US Classifications

  • 379 - Telephonic communications
  • 323 - Electricity: power supply or regulation systems