469656

Information

• Patent Grant
• 469656

• References
• Source

• Patent Number

  469,656

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1892
  134 years ago

• CPC

  • H02J7/20 - due to variation of continuously variable ohmic resistor
  • Y10T307/819 - Torque

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 310 - Electrical generator or motor structure
  • 315 - Electric lamp and discharge devices: systems
  • 322 - Electricity: single generator systems