3875440

Information

• Patent Grant
• 3875440

• References
• Source

• Patent Number

  3,875,440

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • H01J29/385 - Photocathodes comprising a layer which modified the wave length of impinging radiation
  • H01J31/508 - Multistage converters

• US Classifications

  • 313 - Electric lamp and discharge devices