2200233

Information

• Patent Grant
• 2200233

• References
• Source

• Patent Number

  2,200,233

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1940
  84 years ago

• CPC

  • G01R13/12 - Chemical recording
  • H01T1/10 - with extinguishing fluid evolved from solid material by heat of arc

• US Classifications

  • 324 - Electricity: measuring and testing
  • 340 - Communications: electrical
  • 346 - Recorders
  • 361 - Electricity: electrical systems and devices
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems