2523866

Information

• Patent Grant
• 2523866

• References
• Source

• Patent Number

  2,523,866

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1950
  74 years ago

• CPC

  • G01R13/04 - for producing permanent records
  • G01R13/14 - Recording on a light-sensitive material

• US Classifications

  • 324 - Electricity: measuring and testing
  • 346 - Recorders
  • 359 - Optical: systems and elements