3701272

Information

• Patent Grant
• 3701272

• References
• Source

• Patent Number

  3,701,272

• Date Filed

  Not available

• Date Issued

  Tuesday, October 31, 1972
  52 years ago

• CPC

  • B21B17/08 - with mandrel having one or more protrusions
  • B21B19/04 - Rolling basic material of solid, i.e. non-hollow, structure Piercing

• US Classifications

  • 072 - Metal deforming