3726120

Information

• Patent Grant
• 3726120

• References
• Source

• Patent Number

  3,726,120

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1973
  51 years ago

• CPC

  • B21D51/06 - folded objects
  • B21C37/101 - Making of the seams
  • B21C37/104 - the tubes having a special shape
  • B21D39/02 - of sheet metal by folding

• US Classifications

  • 072 - Metal deforming