3922134

Information

• Patent Grant
• 3922134

• References
• Source

• Patent Number

  3,922,134

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • B21D9/01 - the mandrel being flexible and engaging the entire tube length
  • B29C33/505 - cores or mandrels
  • B29C53/083 - bending longitudinally
  • B29C53/82 - Cores or mandrels
  • H02G3/00 - Installations of electric cables or lines in or on buildings, equivalent structures or vehicles
  • B29L2023/22 - Tubes or pipes

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 249 - Static molds