3354778

Information

• Patent Grant
• 3354778

• References
• Source

• Patent Number

  3,354,778

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1967
  57 years ago

• CPC

  • G01D7/06 - Luminous indications projected on a common screen
  • G01B11/00 - Measuring arrangements characterised by the use of optical means
  • G01D5/38 - by diffraction gratings
  • G01D13/10 - with adjustable scales with auxiliary scales

• US Classifications

  • 356 - Optics: measuring and testing
  • 359 - Optical: systems and elements