3471630

Information

• Patent Grant
• 3471630

• References
• Source

• Patent Number

  3,471,630

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1969
  55 years ago

• CPC

  • H05H7/14 - Vacuum chambers

• US Classifications

  • 174 - Electricity: conductors and insulators
  • 313 - Electric lamp and discharge devices
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems