1852781

Information

• Patent Grant
• 1852781

• References
• Source

• Patent Number

  1,852,781

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1932
  92 years ago

• CPC

  • B23K9/0352 - the backing means being movable during the welding operation

• US Classifications

  • 219 - Electric heating