3303421

Information

• Patent Grant
• 3303421

• References
• Source

• Patent Number

  3,303,421

• Date Filed

  Not available

• Date Issued

  Tuesday, February 7, 1967
  59 years ago

• CPC

  • G05B19/406 - characterised by monitoring or safety
  • G05B2219/35265 - Check time differences of command signals

• US Classifications

  • 324 - Electricity: measuring and testing
  • 318 - Electricity: motive power systems
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems