2207344

Information

• Patent Grant
• 2207344

• References
• Source

• Patent Number

  2,207,344

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1940
  84 years ago

• CPC

  • G01D9/28 - Producing one or more recordings, each recording being of the values of two or more different variables
  • G01D9/36 - in separate columns

• US Classifications

  • 346 - Recorders
  • 236 - Automatic temperature and humidity regulation
  • 324 - Electricity: measuring and testing