3457487

Information

• Patent Grant
• 3457487

• References
• Source

• Patent Number

  3,457,487

• Date Filed

  Not available

• Date Issued

  Tuesday, July 22, 1969
  55 years ago

• CPC

  • H02P7/298 - controlling armature and field supply
  • Y10S388/903 - Protective
  • Y10S388/916 - Threshold circuit
  • Y10S388/918 - Trigger by unijunction transistor

• US Classifications

  • 388 - Electricity: motor control systems
  • 318 - Electricity: motive power systems