3139016

Information

• Patent Grant
• 3139016

• References
• Source

• Patent Number

  3,139,016

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1964
  60 years ago

• CPC

  • G03B13/26 - with magnifiers for inspecting image formed on screen

• US Classifications

  • 396 - Photography
  • 356 - Optics: measuring and testing
  • 359 - Optical: systems and elements