3381156

Information

• Patent Grant
• 3381156

• References
• Source

• Patent Number

  3,381,156

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1968
  56 years ago

• CPC

  • H01J19/00 - Details of vacuum tubes of the types covered by group H01J21/00
  • H01J2893/0022 - Manufacture
  • Y10T29/49936 - Surface interlocking

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 029 - Metal working