3630592

Information

• Patent Grant
• 3630592

• References
• Source

• Patent Number

  3,630,592

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1971
  53 years ago

• CPC

  • G03H1/0486 - Improving or monitoring the quality of the record
  • G03H2001/0489 - by using phase stabilized beam
  • Y10S359/90 - Methods

• US Classifications

  • 359 - Optical: systems and elements
  • 073 - Measuring and testing