3394568

Information

• Patent Grant
• 3394568

• References
• Source

• Patent Number

  3,394,568

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1968
  56 years ago

• CPC

  • B21C23/32 - Lubrication of metal being extruded or of dies, or the like
  • B21B17/04 - in a continuous process
  • B21B17/08 - with mandrel having one or more protrusions
  • B21B19/04 - Rolling basic material of solid, i.e. non-hollow, structure Piercing
  • B21B25/04 - Cooling or lubricating mandrels during operation
  • B21B39/20 - Revolving, turning-over, or like manipulation of work
  • B21B45/04 - for de-scaling
  • B21B2045/026 - for tubes
  • Y10T29/49986 - Subsequent to metal working

• US Classifications

  • 072 - Metal deforming