3681691

Information

• Patent Grant
• 3681691

• References
• Source

• Patent Number

  3,681,691

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1972
  51 years ago

• CPC

  • G01R5/10 - String galvanometers

• US Classifications

  • 324 - Electricity: measuring and testing