1733904

Information

• Patent Grant
• 1733904

• References
• Source

• Patent Number

  1,733,904

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1929
  95 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

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 218 - High-voltage switches with arc preventing or extinguishing devices