3173128

Information

• Patent Grant
• 3173128

• References
• Source

• Patent Number

  3,173,128

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1965
  60 years ago

• CPC

  • H04W88/028 - using pulse address codes
  • H04Q5/20 - the subordinate centre permitting interconnection of subscribers connected thereto

• US Classifications

  • 340 - Communications: electrical