3665744

Information

• Patent Grant
• 3665744

• References
• Source

• Patent Number

  3,665,744

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1972
  52 years ago

• CPC

  • B21D5/10 - for making tubes
  • B21D51/10 - conically or cylindrically shaped objects
  • B21D51/36 - collapsible or like thin-walled tubes

• US Classifications

  • 072 - Metal deforming