3641555

Information

• Patent Grant
• 3641555

• References
• Source

• Patent Number

  3,641,555

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1972
  53 years ago

• CPC

  • G06F3/0489 - using dedicated keyboard keys or combinations thereof
  • G09G1/26 - using storage tubes

• US Classifications

  • 345 - Computer graphics processing and selective visual display systems
  • 315 - Electric lamp and discharge devices: systems
  • 340 - Communications: electrical
  • 379 - Telephonic communications
  • 715 - Data processing: presentation processing of document, operator interface processing, and screen saver display processing