2522257

Information

• Patent Grant
• 2522257

• References
• Source

• Patent Number

  2,522,257

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1950
  74 years ago

• CPC

  • B21C3/12 - Die holders Rotating dies
  • B21B19/12 - the axes of the rollers being arranged essentially parallel to the axis of the work
  • B21D22/21 - without fixing the border of the blank

• US Classifications

  • 072 - Metal deforming
  • 264 - Plastic and nonmetallic article shaping or treating: processes