1706705

Information

• Patent Grant
• 1706705

• References
• Source

• Patent Number

  1,706,705

• Date Filed

  Not available

• Date Issued

  Tuesday, March 26, 1929
  96 years ago

• CPC

  • H02H7/266 - involving switching on a spare supply
  • Y10T307/615 - Substitute or emergency source
  • Y10T307/826 - Electrical

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 307 - Electrical transmission or interconnection systems