3831417

Information

• Patent Grant
• 3831417

• References
• Source

• Patent Number

  3,831,417

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1974
  50 years ago

• CPC

  • B21B35/025 - for stretch-reducing of tubes
  • B21B17/14 - without mandrel

• US Classifications

  • 072 - Metal deforming