2681028

Information

• Patent Grant
• 2681028

• References
• Source

• Patent Number

  2,681,028

• Date Filed

  Not available

• Date Issued

  Tuesday, June 15, 1954
  70 years ago

• CPC

  • B23K9/0358 - the backing means being a ring or sleeve

• US Classifications

  • 228 - Metal fusion bonding
  • 285 - Pipe joints or couplings