2508379

Information

• Patent Grant
• 2508379

• References
• Source

• Patent Number

  2,508,379

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1950
  74 years ago

• CPC

  • G01R11/40 - for polyphase operation

• US Classifications

  • 324 - Electricity: measuring and testing
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets