3681970

Information

• Patent Grant
• 3681970

• References
• Source

• Patent Number

  3,681,970

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1972
  52 years ago

• CPC

  • G01B9/021 - using holographic techniques
  • G01N25/72 - Investigating presence of flaws
  • Y10S359/90 - Methods
  • Y10S359/902 - Holographic interferometer

• US Classifications

  • 374 - Thermal measuring and testing
  • 073 - Measuring and testing
  • 359 - Optical: systems and elements