2687454

Information

• Patent Grant
• 2687454

• References
• Source

• Patent Number

  2,687,454

• Date Filed

  Not available

• Date Issued

  Tuesday, August 24, 1954
  70 years ago

• CPC

  • G01B3/44 - preadjustable for wear or tolerance
  • B25D5/02 - Automatic centre punches
  • G01B7/28 - for measuring contours or curvatures

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 033 - Geometrical instruments
  • 157 - Wheelwright machines