3544774

Information

• Patent Grant
• 3544774

• References
• Source

• Patent Number

  3,544,774

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1970
  54 years ago

• CPC

  • G06G7/52 - for economic systems for statistics
  • G01B21/08 - for measuring thickness
  • G01B21/30 - for measuring roughness or irregularity of surfaces
  • G01D1/14 - giving a distribution function of a value
  • G06G7/20 - for evaluating powers, roots, polynomes, mean square values, standard deviation

• US Classifications

  • 702 - Data processing: measuring, calibrating, or testing
  • 073 - Measuring and testing
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems