3747355

Information

• Patent Grant
• 3747355

• References
• Source

• Patent Number

  3,747,355

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1973
  51 years ago

• CPC

  • F16L1/026 - in or on a frozen surface

• US Classifications

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