3752438

Information

• Patent Grant
• 3752438

• References
• Source

• Patent Number

  3,752,438

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1973
  51 years ago

• CPC

  • B29D23/006 - Elbows
  • B29C33/485 - cores or mandrels
  • F16L43/007 - made of concrete, cement or asbestos-cement
  • F16L43/008 - made from plastic material

• US Classifications

  • 249 - Static molds
  • 285 - Pipe joints or couplings
  • 425 - Plastic article or earthenware shaping or treating: apparatus