1332932

Information

• Patent Grant
• 1332932

• References
• Source

• Patent Number

  1,332,932

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1920
  105 years ago

• CPC

  • B21C37/08 - Making tubes with welded or soldered seams
  • B21C37/0826 - Preparing the edges of the metal sheet with the aim of having some effect on the weld
  • B21C37/101 - Making of the seams

• US Classifications

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