3861048

Information

• Patent Grant
• 3861048

• References
• Source

• Patent Number

  3,861,048

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1975
  50 years ago

• CPC

  • G01B3/24 - with open yoke
  • G01B5/213 - for measuring radius of curvature

• US Classifications

  • 033 - Geometrical instruments
  • 116 - Signals and indicators
  • 356 - Optics: measuring and testing