3868040

Information

• Patent Grant
• 3868040

• References
• Source

• Patent Number

  3,868,040

• Date Filed

  Not available

• Date Issued

  Tuesday, February 25, 1975
  49 years ago

• CPC

  • E04H5/04 - Transformer houses Substations or switchgear houses
  • H01F27/02 - Casings
  • H02G9/00 - Installations of electric cables or lines in or on the ground or water
  • Y10S70/34 - Cover fasteners
  • Y10T70/5031 - Receptacle
  • Y10T70/5093 - For closures
  • Y10T70/5566 - External locking devices
  • Y10T292/1099 - Screw

• US Classifications

  • 220 - Receptacles
  • 052 - Static structures
  • 070 - Locks
  • 174 - Electricity: conductors and insulators
  • 292 - Closure fasteners
  • 312 - Supports: cabinet structure
  • D25 - Building units and construction elements