2537384

Information

• Patent Grant
• 2537384

• References
• Source

• Patent Number

  2,537,384

• Date Filed

  Not available

• Date Issued

  Tuesday, January 9, 1951
  74 years ago

• CPC

  • G01R13/12 - Chemical recording

• US Classifications

  • 324 - Electricity: measuring and testing
  • 346 - Recorders