3517391

Information

• Patent Grant
• 3517391

• References
• Source

• Patent Number

  3,517,391

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1970
  54 years ago

• CPC

  • G06F7/4985 - by successive additions or subtractions
  • G06F7/026 - Magnitude comparison, i.e. determining the relative order of operands based on their numerical value
  • G06F7/544 - for evaluating functions by calculation
  • G06F15/02 - manually operated with input through keyboard and computation using a built-in programme
  • H03K25/00 - Pulse counters with step-by-step integration and static storage Analogous frequency dividers

• US Classifications

  • 713 - Electrical computers and digital processing systems: support