3512862

Information

• Patent Grant
• 3512862

• References
• Source

• Patent Number

  3,512,862

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1970
  54 years ago

• CPC

  • G01D13/12 - Graduation

• US Classifications

  • 116 - Signals and indicators
  • 033 - Geometrical instruments
  • 073 - Measuring and testing
  • 359 - Optical: systems and elements