316500

Information

• Patent Grant
• 316500

• References
• Source

• Patent Number

  316,500

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1885
  140 years ago

• CPC

  • H02P7/063 - using centrifugal devices
  • Y10S388/928 - Which controls position of commutator brushes

• US Classifications

  • 388 - Electricity: motor control systems
  • 361 - Electricity: electrical systems and devices