3921303

Information

• Patent Grant
• 3921303

• References
• Source

• Patent Number

  3,921,303

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • G01B5/12 - internal diameters
  • B07C5/124 - by means of mechanical measuring devices which may also control electrical contacts
  • G01B3/46 - Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable

• US Classifications

  • 033 - Geometrical instruments
  • 209 - Classifying, separating, and assorting solids