3753352

Information

• Patent Grant
• 3753352

• References
• Source

• Patent Number

  3,753,352

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1973
  51 years ago

• CPC

  • E02B11/005 - Drainage conduits
  • B26F1/0053 - by machining
  • B29C59/021 - of profiled articles
  • F16L9/127 - the walls consisting of a single layer

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 138 - Pipes and tubular conduits
  • 239 - Fluid sprinkling, spraying, and diffusing
  • 264 - Plastic and nonmetallic article shaping or treating: processes