3619690

Information

• Patent Grant
• 3619690

• References
• Source

• Patent Number

  3,619,690

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1971
  53 years ago

• CPC

  • H01J29/861 - Vessels or containers characterised by the form or the structure thereof
  • H01J5/18 - Windows permeable to X-rays, gamma-rays, or particles
  • H01J29/24 - Supports for luminescent material
  • H01J29/89 - Optical or photographic arrangements structurally combined or co-operating with the vessel
  • H01J31/121 - tubes for oscillography

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 220 - Receptacles
  • 347 - Incremental printing of symbolic information