3548240

Information

• Patent Grant
• 3548240

• References
• Source

• Patent Number

  3,548,240

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1970
  54 years ago

• CPC

  • H01J61/24 - Means for obtaining or maintaining the desired pressure within the vessel
  • H01J61/74 - having a main light-emitting filling of difficult vaporisable metal vapour

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 445 - Electric lamp or space discharge component or device manufacturing