3273601

Information

• Patent Grant
• 3273601

• References
• Source

• Patent Number

  3,273,601

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1966
  58 years ago

• CPC

  • F16L9/02 - of metal
  • B21C37/108 - without continuous longitudinal movement of the sheet during the bending operation
  • B21D39/037 - Interlocking butt joints
  • B21D51/10 - conically or cylindrically shaped objects
  • F16L9/17 - obtained by bending a sheet longitudinally and connecting the edges
  • Y10T29/49936 - Surface interlocking

• US Classifications

  • 138 - Pipes and tubular conduits
  • 029 - Metal working