3860808

Information

• Patent Grant
• 3860808

• References
• Source

• Patent Number

  3,860,808

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1975
  50 years ago

• CPC

  • G06F3/0227 - Cooperation and interconnection of the input arrangement with other functional units of a computer
  • G06F15/7864 - on more than one IC chip
  • H03M11/18 - wherein the shift keys are operated before the operation of the multifunction keys
  • H03M11/20 - Dynamic coding

• US Classifications

  • 708 - Electrical computers: arithmetic processing and calculating