3900346

Information

• Patent Grant
• 3900346

• References
• Source

• Patent Number

  3,900,346

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • B23K9/032 - for three-dimensional seams
  • B23K7/005 - Machines, apparatus, or equipment specially adapted for cutting curved workpieces

• US Classifications

  • 148 - Metal treatment
  • 266 - Metallurgical apparatus