3221490

Information

• Patent Grant
• 3221490

• References
• Source

• Patent Number

  3,221,490

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1965
  59 years ago

• CPC

  • B21L9/04 - Punching or bending the different parts of the chain links

• US Classifications

  • 059 - Chain, staple, and horseshoe making
  • 072 - Metal deforming