1905751

Information

• Patent Grant
• 1905751

• References
• Source

• Patent Number

  1,905,751

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1933
  91 years ago

• CPC

  • H01H33/66 - Vacuum switches
  • H01H9/52 - Cooling of switch parts
  • H01H33/668 - Means for obtaining or monitoring the vacuum
  • H01H33/6683 - by gettering
  • H01H2009/526 - of the high voltage switches

• US Classifications

  • 218 - High-voltage switches with arc preventing or extinguishing devices
  • 174 - Electricity: conductors and insulators
  • 313 - Electric lamp and discharge devices