2854628

Information

• Patent Grant
• 2854628

• References
• Source

• Patent Number

  2,854,628

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1958
  66 years ago

• CPC

  • H01J31/14 - Magic-eye or analogous tuning indicators

• US Classifications

  • 324 - Electricity: measuring and testing
  • 116 - Signals and indicators
  • 359 - Optical: systems and elements