3777574

Information

• Patent Grant
• 3777574

• References
• Source

• Patent Number

  3,777,574

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1973
  51 years ago

• CPC

  • G01N9/18 - Special adaptations for indicating, recording, or control
  • Y10S250/902 - with closed light path preset

• US Classifications

  • 073 - Measuring and testing
  • 250 - Radiant energy