3918283

Information

• Patent Grant
• 3918283

• References
• Source

• Patent Number

  3,918,283

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1975
  49 years ago

• CPC

  • B21C37/101 - Making of the seams
  • B21C37/104 - the tubes having a special shape

• US Classifications

  • 072 - Metal deforming