3909919

Information

• Patent Grant
• 3909919

• References
• Source

• Patent Number

  3,909,919

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1975
  49 years ago

• CPC

  • B21D39/021 - for panels
  • B21D39/026 - Reinforcing the connection by locally deforming
  • F16B5/00 - Joining sheets or plates
  • F16B17/008 - of sheets or plates mutually
  • Y10T29/49915 - Overedge assembling of seated part
  • Y10T29/49922 - by bending over projecting prongs
  • Y10T29/49936 - Surface interlocking

• US Classifications

  • 029 - Metal working