3508021

Information

• Patent Grant
• 3508021

• References
• Source

• Patent Number

  3,508,021

• Date Filed

  Not available

• Date Issued

  Tuesday, April 21, 1970
  54 years ago

• CPC

  • H01H33/66 - Vacuum switches
  • H01H33/6683 - by gettering
  • H01H2033/66276 - Details relating to the mounting of screens in vacuum switches

• US Classifications

  • 218 - High-voltage switches with arc preventing or extinguishing devices
  • 200 - Electricity: circuit makers and breakers