3557649

Information

• Patent Grant
• 3557649

• References
• Source

• Patent Number

  3,557,649

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  53 years ago

• CPC

  • B21D28/32 - in other articles of special shape
  • Y10T83/0596 - Cutting wall of hollow work
  • Y10T83/386 - With expanding mandrel
  • Y10T83/401 - Tools operate in a substantially common transverse plane of cut

• US Classifications

  • 083 - Cutting
  • 269 - Work holders