1985925

Information

• Patent Grant
• 1985925

• References
• Source

• Patent Number

  1,985,925

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1935
  90 years ago

• CPC

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

• US Classifications

  • 101 - Printing
  • 430 - Radiation imagery chemistry: process, composition, or product thereof