3483331

Information

• Patent Grant
• 3483331

• References
• Source

• Patent Number

  3,483,331

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1969
  55 years ago

• CPC

  • H04Q3/545 - using a stored programme
  • G06F15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a programme unit and a register
  • H01H63/20 - using stepping magnet and ratchet
  • H04Q3/54 - in which the logic circuitry controlling the exchange is centralised

• US Classifications

  • 379 - Telephonic communications