3690278

Information

• Patent Grant
• 3690278

• References
• Source

• Patent Number

  3,690,278

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • B21D19/16 - Reverse flanging of tube ends
  • B21D19/02 - by continuously-acting tools moving along the edge
  • Y10T29/53726 - with second workpiece inside annular work one workpiece moved to shape the other

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming