3358492

Information

• Patent Grant
• 3358492

• References
• Source

• Patent Number

  3,358,492

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1967
  57 years ago

• CPC

  • B21D39/20 - with mandrels
  • B21C37/24 - annularly-ribbed tubes

• US Classifications

  • 072 - Metal deforming