1572236

Information

• Patent Grant
• 1572236

• References
• Source

• Patent Number

  1,572,236

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1926
  99 years ago

• CPC

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

• US Classifications

  • 359 - Optical: systems and elements
  • 396 - Photography