3134920

Information

• Patent Grant
• 3134920

• References
• Source

• Patent Number

  3,134,920

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1964
  60 years ago

• CPC

  • H01J61/22 - vapour of an alkali metal
  • H01J61/30 - Vessels Containers
  • H01J61/302 - characterised by the material of the vessel
  • H01J61/74 - having a main light-emitting filling of difficult vaporisable metal vapour

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 501 - Compositions: ceramic