2452248

Information

• Patent Grant
• 2452248

• References
• Source

• Patent Number

  2,452,248

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1948
  76 years ago

• CPC

  • E21F9/00 - Devices preventing sparking of machines or apparatus

• US Classifications

  • 310 - Electrical generator or motor structure
  • 174 - Electricity: conductors and insulators
  • 454 - Ventilation