3488587

Information

• Patent Grant
• 3488587

• References
• Source

• Patent Number

  3,488,587

• Date Filed

  Not available

• Date Issued

  Tuesday, January 6, 1970
  55 years ago

• CPC

  • G01R5/10 - String galvanometers
  • G01R13/04 - for producing permanent records

• US Classifications

  • 324 - Electricity: measuring and testing
  • 310 - Electrical generator or motor structure
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 346 - Recorders