3887791

Information

• Patent Grant
• 3887791

• References
• Source

• Patent Number

  3,887,791

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1975
  49 years ago

• CPC

  • G06C11/02 - with visual indication

• US Classifications

  • 235 - Registers
  • 177 - Weighing scales
  • 345 - Computer graphics processing and selective visual display systems
  • 349 - Liquid crystal cells, elements and systems
  • 359 - Optical: systems and elements
  • D18 - Printing and office machinery