2282590

Information

• Patent Grant
• 2282590

• References
• Source

• Patent Number

  2,282,590

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1942
  83 years ago

• CPC

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

• US Classifications

  • 324 - Electricity: measuring and testing