611778

Information

• Patent Grant
• 611778

• References
• Source

• Patent Number

  611,778

• Date Filed

  Not available

• Date Issued

  Tuesday, October 4, 1898
  126 years ago

• CPC

  • H02J9/00 - Circuit arrangement for emergency or standby power supply
  • Y10T307/538 - Tap-changing or variable number of cells

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 105 - Railway rolling stock
  • 191 - Electricity: transmission to vehicles