3781114

Information

• Patent Grant
• 3781114

• References
• Source

• Patent Number

  3,781,114

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  50 years ago

• CPC

  • G01D5/26 - characterised by optical transfer means
  • G01S3/787 - using rotating reticles producing a direction-dependant modulation characteristic

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy