3020591

Information

• Patent Grant
• 3020591

• References
• Source

• Patent Number

  3,020,591

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1962
  62 years ago

• CPC

  • B29C45/532 - using a hollow injection ram co-operating with a coaxial screw
  • B29C2045/533 - using a continuously rotating plasticising screw

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus