3612939

Information

• Patent Grant
• 3612939

• References
• Source

• Patent Number

  3,612,939

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  53 years ago

• CPC

  • H01H33/6683 - by gettering

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 218 - High-voltage switches with arc preventing or extinguishing devices
  • 417 - Pumps