1494648

Information

• Patent Grant
• 1494648

• References
• Source

• Patent Number

  1,494,648

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1924
  100 years ago

• CPC

  • G01B5/20 - for measuring contours or curvatures
  • G01B5/22 - Spherometers

• US Classifications

  • 033 - Geometrical instruments