3783668

Information

• Patent Grant
• 3783668

• References
• Source

• Patent Number

  3,783,668

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1974
  51 years ago

• CPC

  • B21C1/24 - by means of mandrels
  • B21C1/006 - using vibratory energy

• US Classifications

  • 072 - Metal deforming