2900604

Information

• Patent Grant
• 2900604

• References
• Source

• Patent Number

  2,900,604

• Date Filed

  Not available

• Date Issued

  Tuesday, August 18, 1959
  65 years ago

• CPC

  • G01R11/40 - for polyphase operation
  • Y10T74/18752 - Manually driven

• US Classifications

  • 324 - Electricity: measuring and testing
  • 074 - Machine element or mechanism