1806949

Information

• Patent Grant
• 1806949

• References
• Source

• Patent Number

  1,806,949

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1931
  93 years ago

• CPC

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

• US Classifications

  • 219 - Electric heating