1881098

Information

• Patent Grant
• 1881098

• References
• Source

• Patent Number

  1,881,098

• Date Filed

  Not available

• Date Issued

  Tuesday, October 4, 1932
  92 years ago

• CPC

  • E21D11/14 - Lining predominantly with metal

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 138 - Pipes and tubular conduits