2144325

Information

• Patent Grant
• 2144325

• References
• Source

• Patent Number

  2,144,325

• Date Filed

  Not available

• Date Issued

  Tuesday, January 17, 1939
  86 years ago

• CPC

  • H03J1/042 - Means insuring a precise reading of the dial

• US Classifications

  • 116 - Signals and indicators
  • 033 - Geometrical instruments