3330988

Information

• Patent Grant
• 3330988

• References
• Source

• Patent Number

  3,330,988

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1967
  57 years ago

• CPC

  • H01J31/121 - tubes for oscillography

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 324 - Electricity: measuring and testing
  • 434 - Education and demonstration