3609287

Information

• Patent Grant
• 3609287

• References
• Source

• Patent Number

  3,609,287

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1971
  53 years ago

• CPC

  • B23K15/0066 - with backing means disposed under the seams
  • H01J37/315 - for welding

• US Classifications

  • 219 - Electric heating