3428820

Information

• Patent Grant
• 3428820

• References
• Source

• Patent Number

  3,428,820

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1969
  56 years ago

• CPC

  • G05F1/59 - including plural semiconductor devices as final control devices for a single load
  • G05F1/571 - with overvoltage detector
  • H02J9/061 - characterised by the use of electronic means
  • H03F1/542 - Replacing by standby devices
  • Y10T307/615 - Substitute or emergency source

• US Classifications

  • 307 - Electrical transmission or interconnection systems