3757320

Information

• Patent Grant
• 3757320

• References
• Source

• Patent Number

  3,757,320

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1973
  51 years ago

• CPC

  • G09F9/405 - the selected character being projected on a common screen accommodating only one character at a time, to provide the same display position for all characters
  • G01B3/205 - provided with a counter for digital indication of the measured dimension

• US Classifications

  • 033 - Geometrical instruments
  • 040 - Card, picture, or sign exhibiting
  • 345 - Computer graphics processing and selective visual display systems