3331959

Information

• Patent Grant
• 3331959

• References
• Source

• Patent Number

  3,331,959

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1967
  57 years ago

• CPC

  • B01J3/004 - Sight-glasses therefor
  • G21F7/03 - Windows
  • F21W2131/411 - for inspection of the interior of hollow structures
  • Y10T137/8359 - Inspection means
  • Y10T403/32737 - including liner, shim, or discrete seat

• US Classifications

  • 362 - Illumination
  • 073 - Measuring and testing
  • 137 - Fluid handling
  • 403 - Joints and connections
  • 976 - Nuclear technology