2247936

Information

• Patent Grant
• 2247936

• References
• Source

• Patent Number

  2,247,936

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1941
  84 years ago

• CPC

  • H02B1/505 - retractable installations
  • H02B7/08 - Underground substations

• US Classifications

  • 174 - Electricity: conductors and insulators
  • 220 - Receptacles