2930979

Information

• Patent Grant
• 2930979

• References
• Source

• Patent Number

  2,930,979

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1960
  65 years ago

• CPC

  • G01R11/40 - for polyphase operation

• US Classifications

  • 324 - Electricity: measuring and testing