3498198

Information

• Patent Grant
• 3498198

• References
• Source

• Patent Number

  3,498,198

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1970
  54 years ago

• CPC

  • G03B13/26 - with magnifiers for inspecting image formed on screen
  • G03B7/09976 - the sensor being mounted in, before, or behind the porro-prism

• US Classifications

  • 396 - Photography
  • 356 - Optics: measuring and testing