2172738

Information

• Patent Grant
• 2172738

• References
• Source

• Patent Number

  2,172,738

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1939
  85 years ago

• CPC

  • H01J43/22 - Dynodes consisting of electron-permeable material
  • H01J29/482 - Electron guns using electron multiplication

• US Classifications

  • 313 - Electric lamp and discharge devices