3430475

Information

• Patent Grant
• 3430475

• References
• Source

• Patent Number

  3,430,475

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1969
  55 years ago

• CPC

  • B21C37/08 - Making tubes with welded or soldered seams
  • B21C37/0822 - Guiding or aligning the edges of the bent sheet
  • B21D11/203 - Round bending

• US Classifications

  • 072 - Metal deforming
  • 219 - Electric heating
  • 228 - Metal fusion bonding