3632256

Information

• Patent Grant
• 3632256

• References
• Source

• Patent Number

  3,632,256

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1972
  53 years ago

• CPC

  • B29B7/484 - with two shafts provided with screws
  • B29C47/0009 - characterised by the shape of the articles
  • B29C47/46 - using screws extruding in opposite directions

• US Classifications

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