3439521

Information

• Patent Grant
• 3439521

• References
• Source

• Patent Number

  3,439,521

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  55 years ago

• CPC

  • B21C37/205 - with annular guides
  • B21D13/02 - by pressing
  • G21C3/08 - provided with external means to promote heat-transfer
  • Y02E30/40 - Other aspects relating to nuclear fission

• US Classifications

  • 072 - Metal deforming