3515931

Information

• Patent Grant
• 3515931

• References
• Source

• Patent Number

  3,515,931

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1970
  54 years ago

• CPC

  • H01J5/38 - Pinched-stem or analogous seals
  • H01J9/326 - making pinched-stem or analogous seals

• US Classifications

  • 313 - Electric lamp and discharge devices