3494698

Information

• Patent Grant
• 3494698

• References
• Source

• Patent Number

  3,494,698

• Date Filed

  Not available

• Date Issued

  Tuesday, February 10, 1970
  54 years ago

• CPC

  • G03H1/0486 - Improving or monitoring the quality of the record
  • G03H2001/0489 - by using phase stabilized beam
  • Y10S359/902 - Holographic interferometer

• US Classifications

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