3719990

Information

• Patent Grant
• 3719990

• References
• Source

• Patent Number

  3,719,990

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • G01J5/061 - using cooling or thermostating of parts of the apparatus
  • H01B17/305 - by embedding in glass or ceramic material
  • H01J5/44 - Annular seals disposed between the ends of the vessel
  • Y10T29/49146 - with encapsulating, e.g., potting, etc.
  • Y10T29/49902 - by manipulating aligning means

• US Classifications

  • 029 - Metal working
  • 445 - Electric lamp or space discharge component or device manufacturing