2905138

Information

• Patent Grant
• 2905138

• References
• Source

• Patent Number

  2,905,138

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1959
  65 years ago

• CPC

  • G01D13/02 - Scales Dials
  • Y10S116/45 - Parallax

• US Classifications

  • 116 - Signals and indicators
  • 359 - Optical: systems and elements