1751222

Information

• Patent Grant
• 1751222

• References
• Source

• Patent Number

  1,751,222

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1930
  94 years ago

• CPC

  • H01H33/555 - Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement
  • H01H35/32 - actuated by bellows

• US Classifications

  • 174 - Electricity: conductors and insulators
  • 073 - Measuring and testing
  • 218 - High-voltage switches with arc preventing or extinguishing devices
  • 340 - Communications: electrical