2991418

Information

• Patent Grant
• 2991418

• References
• Source

• Patent Number

  2,991,418

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1961
  63 years ago

• CPC

  • G01D13/24 - for indicating a maximum or minimum

• US Classifications

  • 324 - Electricity: measuring and testing