3510661

Information

• Patent Grant
• 3510661

• References
• Source

• Patent Number

  3,510,661

• Date Filed

  Not available

• Date Issued

  Tuesday, May 5, 1970
  54 years ago

• CPC

  • H03K17/288 - in tube switches
  • G01J1/4219 - specially adapted for enlargers
  • G03B27/80 - in dependence upon automatic analysis of the original
  • H03K17/78 - using opto-electronic devices

• US Classifications

  • 250 - Radiant energy
  • 315 - Electric lamp and discharge devices: systems
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems