3780561

Information

• Patent Grant
• 3780561

• References
• Source

• Patent Number

  3,780,561

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  51 years ago

• CPC

  • B21D43/06 - by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed

• US Classifications

  • 072 - Metal deforming
  • 226 - Advancing material of indeterminate length