3657529

Information

• Patent Grant
• 3657529

• References
• Source

• Patent Number

  3,657,529

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  53 years ago

• CPC

  • H03K21/08 - Output circuits
  • G06F3/027 - for insertion of decimal point
  • G06F3/1407 - General aspects irrespective of display type
  • G06F15/02 - manually operated with input through keyboard and computation using a built-in programme
  • G09G3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes

• US Classifications

  • 708 - Electrical computers: arithmetic processing and calculating
  • 345 - Computer graphics processing and selective visual display systems