3814946

Information

• Patent Grant
• 3814946

• References
• Source

• Patent Number

  3,814,946

• Date Filed

  Not available

• Date Issued

  Tuesday, June 4, 1974
  50 years ago

• CPC

  • G01N21/8901 - Optical details; Scanning details
  • G01N21/896 - Optical defects in or on transparent materials
  • G01N21/90 - in a container or its contents
  • G01N2021/8907 - Cylindrical optics

• US Classifications

  • 250 - Radiant energy
  • 356 - Optics: measuring and testing