3900772

Information

• Patent Grant
• 3900772

• References
• Source

• Patent Number

  3,900,772

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  50 years ago

• CPC

  • H03J1/18 - Control by auxiliary power

• US Classifications

  • 361 - Electricity: electrical systems and devices