3894221

Information

• Patent Grant
• 3894221

• References
• Source

• Patent Number

  3,894,221

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1975
  49 years ago

• CPC

  • H03K3/351 - the devices being unijunction transistors
  • G01N15/1227 - Circuits
  • G06G7/1865 - with initial condition setting
  • H03K7/06 - Frequency or rate modulation

• US Classifications

  • 702 - Data processing: measuring, calibrating, or testing
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems