2889670

Information

• Patent Grant
• 2889670

• References
• Source

• Patent Number

  2,889,670

• Date Filed

  Not available

• Date Issued

  Tuesday, June 9, 1959
  65 years ago

• CPC

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

• US Classifications

  • 053 - Package making