977226

Information

• Patent Grant
• 977226

• References
• Source

• Patent Number

  977,226

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1910
  114 years ago

• CPC

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

• US Classifications

  • 285 - Pipe joints or couplings