3544209

Information

• Patent Grant
• 3544209

• References
• Source

• Patent Number

  3,544,209

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1970
  54 years ago

• CPC

  • G06M1/22 - for visual indication of the result of count on counting mechanisms
  • G04B19/34 - Position of the hands projected optically

• US Classifications

  • 353 - Optics: image projectors
  • 033 - Geometrical instruments
  • 968 - Horology