3307039

Information

• Patent Grant
• 3307039

• References
• Source

• Patent Number

  3,307,039

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1967
  57 years ago

• CPC

  • G01D5/20 - by varying inductance
  • G01S3/787 - using rotating reticles producing a direction-dependant modulation characteristic
  • H04N3/04 - having a moving aperture also apertures covered by lenses

• US Classifications

  • 250 - Radiant energy
  • 359 - Optical: systems and elements