2294439

Information

• Patent Grant
• 2294439

• References
• Source

• Patent Number

  2,294,439

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1942
  82 years ago

• CPC

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

• US Classifications

  • 228 - Metal fusion bonding
  • 148 - Metal treatment
  • 219 - Electric heating
  • 220 - Receptacles