3448616

Information

• Patent Grant
• 3448616

• References
• Source

• Patent Number

  3,448,616

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • G01F23/292 - Light
  • Y10S250/904 - with single light guide element to guide light in a continuous path

• US Classifications

  • 073 - Measuring and testing
  • 250 - Radiant energy