3601158

Information

• Patent Grant
• 3601158

• References
• Source

• Patent Number

  3,601,158

• Date Filed

  Not available

• Date Issued

  Tuesday, August 24, 1971
  53 years ago

• CPC

  • E21D11/003 - Linings or provisions thereon, specially adapted for traffic tunnels
  • E01B25/00 - Tracks for special kinds of railways
  • E02D27/34 - Foundations for sinking or earthquake territories
  • F16L7/00 - Supporting of pipes or cables inside other pipes or sleeves

• US Classifications

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