3280454

Information

• Patent Grant
• 3280454

• References
• Source

• Patent Number

  3,280,454

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1966
  58 years ago

• CPC

  • B21D39/063 - for assembling ladders
  • Y10T29/4992 - by flaring inserted cup or tube end
  • Y10T29/4994 - Radially expanding internal tube
  • Y10T29/53717 - Annular work

• US Classifications

  • 029 - Metal working