3878314

Information

• Patent Grant
• 3878314

• References
• Source

• Patent Number

  3,878,314

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  49 years ago

• CPC

  • G02B6/4451 - underground connection boxes
  • H02B1/28 - dustproof, splashproof, drip-proof, waterproof or flameproof
  • H02B7/08 - Underground substations
  • H02G9/10 - in cable chambers

• US Classifications

  • 174 - Electricity: conductors and insulators
  • 200 - Electricity: circuit makers and breakers
  • 218 - High-voltage switches with arc preventing or extinguishing devices