3899819

Information

• Patent Grant
• 3899819

• References
• Source

• Patent Number

  3,899,819

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • B23K9/028 - for curved planar seams
  • B21C37/28 - Making tube fittings for connecting pipes
  • B21C37/286 - starting from sheet material
  • Y10T29/49391 - Tube making or reforming
  • Y10T29/49787 - Obtaining plural composite product pieces from preassembled workpieces
  • Y10T156/1052 - with cutting, punching, tearing or severing

• US Classifications

  • 029 - Metal working
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 228 - Metal fusion bonding