3842640

Information

• Patent Grant
• 3842640

• References
• Source

• Patent Number

  3,842,640

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1974
  50 years ago

• CPC

  • B21B19/02 - the axes of the rollers being arranged essentially diagonally to the axis of the work

• US Classifications

  • 072 - Metal deforming