3723857

Information

• Patent Grant
• 3723857

• References
• Source

• Patent Number

  3,723,857

• Date Filed

  Not available

• Date Issued

  Tuesday, March 27, 1973
  51 years ago

• CPC

  • G01R31/257 - Testing of beam-tubes

• US Classifications

  • 324 - Electricity: measuring and testing
  • 445 - Electric lamp or space discharge component or device manufacturing