1953920

Information

• Patent Grant
• 1953920

• References
• Source

• Patent Number

  1,953,920

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1934
  91 years ago

• CPC

  • F16L13/124 - for concrete pipes
  • Y10S264/57 - Processes of forming layered products

• US Classifications

  • 052 - Static structures
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 405 - Hydraulic and earth engineering