2163439

Information

• Patent Grant
• 2163439

• References
• Source

• Patent Number

  2,163,439

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1939
  85 years ago

• CPC

  • B23K9/145 - the insulated welding electrode being laid along the seam

• US Classifications

  • 219 - Electric heating