1863873

Information

• Patent Grant
• 1863873

• References
• Source

• Patent Number

  1,863,873

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1932
  92 years ago

• CPC

  • B21C37/0826 - Preparing the edges of the metal sheet with the aim of having some effect on the weld
  • B21C37/08 - Making tubes with welded or soldered seams

• US Classifications

  • 228 - Metal fusion bonding
  • 072 - Metal deforming
  • 138 - Pipes and tubular conduits