2898971

Information

• Patent Grant
• 2898971

• References
• Source

• Patent Number

  2,898,971

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1959
  65 years ago

• CPC

  • B21D39/18 - Rollers of special shape
  • B21D39/04 - of tubes with tubes of tubes with rods
  • Y10T29/4994 - Radially expanding internal tube
  • Y10T29/53722 - with radially acting tool inside annular work

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming