3712739

Information

• Patent Grant
• 3712739

• References
• Source

• Patent Number

  3,712,739

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1973
  51 years ago

• CPC

  • G01B11/14 - for measuring distance or clearance between spaced objects or spaced apertures
  • G01B9/06 - Measuring telescopes
  • G01B11/27 - for testing the alignment of axes

• US Classifications

  • 356 - Optics: measuring and testing