2940231

Information

• Patent Grant
• 2940231

• References
• Source

• Patent Number

  2,940,231

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1960
  64 years ago

• CPC

  • H01J9/40 - Closing vessels
  • Y10S53/03 - Sealing electron tubes

• US Classifications

  • 053 - Package making
  • 065 - Glass manufacturing