2777257

Information

• Patent Grant
• 2777257

• References
• Source

• Patent Number

  2,777,257

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1957
  68 years ago

• CPC

  • B24B33/06 - with controlling or gauging equipment
  • B24B33/087 - provided with measuring equipment
  • G01B13/10 - internal diameters
  • Y10S33/02 - Air

• US Classifications

  • 451 - Abrading
  • 033 - Geometrical instruments
  • 073 - Measuring and testing