3790288

Information

• Patent Grant
• 3790288

• References
• Source

• Patent Number

  3,790,288

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1974
  50 years ago

• CPC

  • H03F3/04 - with semiconductor devices only
  • G01J1/4223 - specially adapted for copy - or printing apparatus
  • G01J1/44 - Electric circuits

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy
  • 330 - Amplifiers