3580031

Information

• Patent Grant
• 3580031

• References
• Source

• Patent Number

  3,580,031

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  53 years ago

• CPC

  • B21F45/00 - Wire-working in the manufacture of other particular articles
  • B21G3/005 - Nails or pins for special purposes
  • B21H1/22 - characterised by use of rolls having circumferentially varying profile; Die-rolling

• US Classifications

  • 072 - Metal deforming