3611765

Information

• Patent Grant
• 3611765

• References
• Source

• Patent Number

  3,611,765

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  53 years ago

• CPC

  • B21D28/18 - Yieldable
  • B21D31/02 - Stabbing or piercing

• US Classifications

  • 072 - Metal deforming