2189825

Information

• Patent Grant
• 2189825

• References
• Source

• Patent Number

  2,189,825

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1940
  84 years ago

• CPC

  • G01G23/34 - combined with price indicators
  • G01G23/22 - combined with price indicators

• US Classifications

  • 359 - Optical: systems and elements
  • 116 - Signals and indicators
  • 177 - Weighing scales
  • 235 - Registers