2544696

Information

• Patent Grant
• 2544696

• References
• Source

• Patent Number

  2,544,696

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1951
  74 years ago

• CPC

  • G01R13/12 - Chemical recording

• US Classifications

  • 324 - Electricity: measuring and testing
  • 346 - Recorders
  • 361 - Electricity: electrical systems and devices